/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id2_b3_o5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:54:48,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:54:48,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:54:48,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:54:48,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:54:48,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:54:48,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:54:48,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:54:48,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:54:48,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:54:48,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:54:48,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:54:48,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:54:48,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:54:48,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:54:48,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:54:48,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:54:48,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:54:48,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:54:48,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:54:48,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:54:48,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:54:48,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:54:48,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:54:48,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:54:48,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:54:48,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:54:48,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:54:48,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:54:48,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:54:48,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:54:48,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:54:48,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:54:48,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:54:48,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:54:48,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:54:48,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:54:48,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:54:48,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:54:48,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:54:48,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:54:48,415 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 [2020-09-25 00:54:48,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:54:48,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:54:48,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:54:48,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:54:48,445 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:54:48,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:54:48,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:54:48,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:54:48,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:54:48,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:54:48,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:54:48,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:54:48,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:54:48,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:54:48,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:54:48,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:54:48,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:54:48,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:54:48,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:54:48,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:54:48,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:54:48,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:54:48,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:54:48,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:54:48,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:54:48,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:54:48,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:54:48,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:54:48,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:54:48,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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; 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; 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; 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; 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; [2020-09-25 00:54:48,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:54:48,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:54:48,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:54:48,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:54:48,927 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:54:48,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_b3_o5.c [2020-09-25 00:54:49,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf579a017/a64aeef79b2343fe926b136b489dd712/FLAGc99b33074 [2020-09-25 00:54:49,507 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:54:49,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id2_b3_o5.c [2020-09-25 00:54:49,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf579a017/a64aeef79b2343fe926b136b489dd712/FLAGc99b33074 [2020-09-25 00:54:49,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf579a017/a64aeef79b2343fe926b136b489dd712 [2020-09-25 00:54:49,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:54:49,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:54:49,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:54:49,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:54:49,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:54:49,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:54:49" (1/1) ... [2020-09-25 00:54:49,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b8db4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:49, skipping insertion in model container [2020-09-25 00:54:49,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:54:49" (1/1) ... [2020-09-25 00:54:49,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:54:49,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:54:50,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:54:50,198 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:54:50,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:54:50,232 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:54:50,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50 WrapperNode [2020-09-25 00:54:50,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:54:50,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:54:50,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:54:50,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:54:50,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (1/1) ... [2020-09-25 00:54:50,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:54:50,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:54:50,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:54:50,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:54:50,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (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 [2020-09-25 00:54:50,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:54:50,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:54:50,430 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 00:54:50,430 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-09-25 00:54:50,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:54:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 00:54:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:54:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 00:54:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-09-25 00:54:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:54:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:54:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:54:50,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:54:50,648 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:54:50,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:54:50 BoogieIcfgContainer [2020-09-25 00:54:50,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:54:50,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:54:50,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:54:50,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:54:50,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:54:49" (1/3) ... [2020-09-25 00:54:50,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecd590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:54:50, skipping insertion in model container [2020-09-25 00:54:50,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:54:50" (2/3) ... [2020-09-25 00:54:50,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecd590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:54:50, skipping insertion in model container [2020-09-25 00:54:50,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:54:50" (3/3) ... [2020-09-25 00:54:50,665 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b3_o5.c [2020-09-25 00:54:50,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:54:50,693 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:54:50,722 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:54:50,782 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:54:50,784 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:54:50,784 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:54:50,785 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:54:50,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:54:50,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:54:50,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:54:50,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:54:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 00:54:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 00:54:50,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:54:50,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:54:50,845 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:54:50,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:54:50,851 INFO L82 PathProgramCache]: Analyzing trace with hash 875745540, now seen corresponding path program 1 times [2020-09-25 00:54:50,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:54:50,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456418986] [2020-09-25 00:54:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:54:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:51,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:54:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:54:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:54:51,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:54:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:54:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:54:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:54:51,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:54:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:51,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:54:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:54:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:54:51,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:54:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:54:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:54:51,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:54:51,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:54:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:51,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:54:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:54:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:54:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:54:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:54:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:54:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:54:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:54:51,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456418986] [2020-09-25 00:54:51,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:54:51,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:54:51,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638927175] [2020-09-25 00:54:51,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:54:51,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:54:51,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:54:51,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:54:51,259 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 00:54:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:54:51,352 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2020-09-25 00:54:51,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:54:51,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 00:54:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:54:51,368 INFO L225 Difference]: With dead ends: 51 [2020-09-25 00:54:51,368 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 00:54:51,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:54:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 00:54:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 00:54:51,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 00:54:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-09-25 00:54:51,434 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 16 [2020-09-25 00:54:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:54:51,434 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-09-25 00:54:51,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:54:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-09-25 00:54:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 00:54:51,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:54:51,438 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] [2020-09-25 00:54:51,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:54:51,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:54:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:54:51,439 INFO L82 PathProgramCache]: Analyzing trace with hash 71846672, now seen corresponding path program 1 times [2020-09-25 00:54:51,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:54:51,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889822329] [2020-09-25 00:54:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:54:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:51,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:52,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:52,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:54:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:54:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-09-25 00:54:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:54:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 00:54:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:54:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:54:52,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:54:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:52,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:52,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:54:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:54:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:54:52,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:54:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:54:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:54:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:54:52,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:54:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:52,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:52,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:52,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:52,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:54:52,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:54:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 00:54:52,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:54:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:54:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:54:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:54:52,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:54:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:54:52,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:54:52,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:54:52,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:54:52,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:54:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:54:52,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:54:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:54:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:54:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:54:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:54:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:54:52,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889822329] [2020-09-25 00:54:52,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:54:52,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:54:52,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851651262] [2020-09-25 00:54:52,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:54:52,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:54:52,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:54:52,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:54:52,358 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-09-25 00:54:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:54:52,424 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 00:54:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:54:52,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 00:54:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:54:52,426 INFO L225 Difference]: With dead ends: 38 [2020-09-25 00:54:52,426 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:54:52,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:54:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:54:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:54:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:54:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:54:52,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-09-25 00:54:52,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:54:52,429 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:54:52,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:54:52,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:54:52,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:54:52,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:54:52,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:54:52,465 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 00:54:52,465 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:54:52,466 INFO L268 CegarLoopResult]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed. [2020-09-25 00:54:52,466 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 00:54:52,466 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 00:54:52,466 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-25 00:54:52,466 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 00:54:52,466 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:54:52,467 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 00:54:52,467 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 00:54:52,467 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 00:54:52,467 INFO L268 CegarLoopResult]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed. [2020-09-25 00:54:52,467 INFO L271 CegarLoopResult]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true [2020-09-25 00:54:52,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:54:52,468 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:54:52,468 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:54:52,468 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:54:52,468 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2020-09-25 00:54:52,468 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 21 27) the Hoare annotation is: true [2020-09-25 00:54:52,469 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 00:54:52,469 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 21 27) no Hoare annotation was computed. [2020-09-25 00:54:52,469 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-25 00:54:52,469 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-25 00:54:52,469 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:54:52,469 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 00:54:52,470 INFO L268 CegarLoopResult]: For program point L24-2(lines 21 27) no Hoare annotation was computed. [2020-09-25 00:54:52,470 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed. [2020-09-25 00:54:52,470 INFO L268 CegarLoopResult]: For program point idFINAL(lines 7 12) no Hoare annotation was computed. [2020-09-25 00:54:52,470 INFO L268 CegarLoopResult]: For program point idEXIT(lines 7 12) no Hoare annotation was computed. [2020-09-25 00:54:52,470 INFO L271 CegarLoopResult]: At program point idENTRY(lines 7 12) the Hoare annotation is: true [2020-09-25 00:54:52,471 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 00:54:52,471 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 00:54:52,471 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-25 00:54:52,471 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 00:54:52,471 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 00:54:52,471 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 00:54:52,472 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-25 00:54:52,472 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 00:54:52,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:54:52 BoogieIcfgContainer [2020-09-25 00:54:52,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:54:52,484 INFO L168 Benchmark]: Toolchain (without parser) took 2605.98 ms. Allocated memory was 140.5 MB in the beginning and 234.4 MB in the end (delta: 93.8 MB). Free memory was 102.9 MB in the beginning and 196.3 MB in the end (delta: -93.4 MB). Peak memory consumption was 495.4 kB. Max. memory is 7.1 GB. [2020-09-25 00:54:52,485 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:54:52,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.01 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:54:52,487 INFO L168 Benchmark]: Boogie Preprocessor took 112.19 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 182.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:54:52,488 INFO L168 Benchmark]: RCFGBuilder took 309.06 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 168.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:54:52,489 INFO L168 Benchmark]: TraceAbstraction took 1824.61 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 168.1 MB in the beginning and 196.3 MB in the end (delta: -28.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:54:52,493 INFO L336 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 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.01 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.19 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 182.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.06 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 168.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1824.61 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 168.1 MB in the beginning and 196.3 MB in the end (delta: -28.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 6 SDslu, 248 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...