/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=SHALLOWEST --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/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:13:57,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:13:57,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:13:57,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:13:57,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:13:57,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:13:57,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:13:57,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:13:57,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:13:57,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:13:57,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:13:57,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:13:57,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:13:57,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:13:57,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:13:57,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:13:57,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:13:57,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:13:57,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:13:57,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:13:57,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:13:57,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:13:57,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:13:57,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:13:57,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:13:57,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:13:57,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:13:57,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:13:57,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:13:57,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:13:57,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:13:57,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:13:57,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:13:57,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:13:57,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:13:57,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:13:57,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:13:57,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:13:57,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:13:57,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:13:57,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:13:57,727 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 01:13:57,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:13:57,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:13:57,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:13:57,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:13:57,757 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:13:57,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:13:57,758 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:13:57,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:13:57,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:13:57,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:13:57,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:13:57,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:13:57,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:13:57,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:13:57,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:13:57,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:13:57,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:13:57,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:13:57,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:13:57,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:13:57,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:13:57,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:13:57,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:13:57,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:13:57,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:13:58,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:13:58,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:13:58,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:13:58,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:13:58,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:13:58,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-10-27 01:13:58,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc47c8b59/0bdcf91324d243309005b89b1d3bd903/FLAG94a520e87 [2020-10-27 01:13:58,945 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:13:58,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test09.c [2020-10-27 01:13:58,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc47c8b59/0bdcf91324d243309005b89b1d3bd903/FLAG94a520e87 [2020-10-27 01:13:59,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc47c8b59/0bdcf91324d243309005b89b1d3bd903 [2020-10-27 01:13:59,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:13:59,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:13:59,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:13:59,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:13:59,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:13:59,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da80bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59, skipping insertion in model container [2020-10-27 01:13:59,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:13:59,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:13:59,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:13:59,668 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:13:59,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:13:59,712 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:13:59,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59 WrapperNode [2020-10-27 01:13:59,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:13:59,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:13:59,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:13:59,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:13:59,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (1/1) ... [2020-10-27 01:13:59,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:13:59,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:13:59,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:13:59,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:13:59,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (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 01:13:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:13:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:13:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:13:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-27 01:13:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:13:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:13:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:13:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:13:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:13:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-27 01:13:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:13:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:13:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:13:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:13:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:13:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:13:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:14:00,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:14:00,267 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 01:14:00,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:14:00 BoogieIcfgContainer [2020-10-27 01:14:00,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:14:00,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:14:00,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:14:00,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:14:00,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:13:59" (1/3) ... [2020-10-27 01:14:00,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ec5a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:14:00, skipping insertion in model container [2020-10-27 01:14:00,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:59" (2/3) ... [2020-10-27 01:14:00,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ec5a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:14:00, skipping insertion in model container [2020-10-27 01:14:00,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:14:00" (3/3) ... [2020-10-27 01:14:00,296 INFO L111 eAbstractionObserver]: Analyzing ICFG test09.c [2020-10-27 01:14:00,311 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:14:00,318 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:14:00,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:14:00,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:14:00,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:14:00,368 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:14:00,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:14:00,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:14:00,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:14:00,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:14:00,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:14:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-27 01:14:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 01:14:00,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:14:00,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:14:00,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:14:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:14:00,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1827250340, now seen corresponding path program 1 times [2020-10-27 01:14:00,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:14:00,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905645805] [2020-10-27 01:14:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:14:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:00,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:01,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:14:01,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-27 01:14:01,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:14:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:14:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:14:01,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:14:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:14:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:01,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:14:01,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:14:01,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:14:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:14:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:01,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:01,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:01,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:01,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 01:14:01,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:01,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:14:01,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 01:14:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:01,301 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 01:14:01,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905645805] [2020-10-27 01:14:01,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:01,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:14:01,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366255688] [2020-10-27 01:14:01,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:14:01,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:01,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:14:01,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:14:01,333 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2020-10-27 01:14:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:01,578 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-27 01:14:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:14:01,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 01:14:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:01,588 INFO L225 Difference]: With dead ends: 38 [2020-10-27 01:14:01,589 INFO L226 Difference]: Without dead ends: 16 [2020-10-27 01:14:01,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:14:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-27 01:14:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-27 01:14:01,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-27 01:14:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-27 01:14:01,634 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-10-27 01:14:01,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:01,634 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-27 01:14:01,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:14:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-27 01:14:01,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 01:14:01,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:14:01,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:14:01,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:14:01,636 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:14:01,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:14:01,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1580213275, now seen corresponding path program 1 times [2020-10-27 01:14:01,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:14:01,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344173733] [2020-10-27 01:14:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:14:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:01,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:02,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:14:02,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:14:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-27 01:14:02,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:14:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:14:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 01:14:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:14:02,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:14:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:02,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:02,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:14:02,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:14:02,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:14:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:14:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:02,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:02,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:02,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:02,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:02,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:14:02,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:14:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:14:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 01:14:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:02,566 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 01:14:02,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344173733] [2020-10-27 01:14:02,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:02,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:14:02,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815909773] [2020-10-27 01:14:02,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:14:02,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:02,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:14:02,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:14:02,570 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2020-10-27 01:14:02,985 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-27 01:14:02,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:02,992 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-27 01:14:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:14:02,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-27 01:14:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:02,995 INFO L225 Difference]: With dead ends: 16 [2020-10-27 01:14:02,995 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:14:02,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:14:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:14:02,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:14:02,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:14:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:14:02,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-27 01:14:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:02,998 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:14:02,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:14:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:14:02,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:14:02,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:14:03,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:14:03,412 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 01:14:03,412 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 01:14:03,413 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 01:14:03,413 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 01:14:03,413 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:03,413 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.base |old(~p1~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-27 01:14:03,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:03,414 INFO L274 CegarLoopResult]: For program point L11(lines 11 16) no Hoare annotation was computed. [2020-10-27 01:14:03,414 INFO L274 CegarLoopResult]: For program point fEXIT(lines 9 17) no Hoare annotation was computed. [2020-10-27 01:14:03,414 INFO L270 CegarLoopResult]: At program point fENTRY(lines 9 17) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1)) (and (= ~p1~0.offset |~#a~0.offset|) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:03,414 INFO L274 CegarLoopResult]: For program point fFINAL(lines 9 17) no Hoare annotation was computed. [2020-10-27 01:14:03,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:03,415 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-27 01:14:03,415 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:14:03,415 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:03,415 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-10-27 01:14:03,415 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 19 41) the Hoare annotation is: (or (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= ~p2~0.base ~p1~0.base) (= |old(~p1~0.base)| ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:03,415 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|)) (and (= |~#a~0.base| ~p1~0.base) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4) (= ~p1~0.offset |~#a~0.offset|) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:03,416 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 19 41) no Hoare annotation was computed. [2020-10-27 01:14:03,416 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-27 01:14:03,416 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 19 41) no Hoare annotation was computed. [2020-10-27 01:14:03,416 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 01:14:03,416 INFO L270 CegarLoopResult]: At program point L34(lines 19 41) the Hoare annotation is: (or (not (= |old(~p2~0.offset)| |old(~p1~0.offset)|)) (not (= |old(~p1~0.base)| |old(~p2~0.base)|)) (= |~#a~0.base| |~#b~0.base|)) [2020-10-27 01:14:03,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:14:03 BoogieIcfgContainer [2020-10-27 01:14:03,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:14:03,437 INFO L168 Benchmark]: Toolchain (without parser) took 4094.38 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 128.8 MB in the beginning and 109.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 51.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:03,438 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:14:03,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.17 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 118.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:03,440 INFO L168 Benchmark]: Boogie Preprocessor took 62.61 ms. Allocated memory is still 153.1 MB. Free memory was 118.8 MB in the beginning and 117.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:03,441 INFO L168 Benchmark]: RCFGBuilder took 490.29 ms. Allocated memory is still 153.1 MB. Free memory was 117.4 MB in the beginning and 103.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:03,442 INFO L168 Benchmark]: TraceAbstraction took 3146.42 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 136.7 MB in the beginning and 109.2 MB in the end (delta: 27.5 MB). Peak memory consumption was 58.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:03,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.17 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 118.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.61 ms. Allocated memory is still 153.1 MB. Free memory was 118.8 MB in the beginning and 117.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 490.29 ms. Allocated memory is still 153.1 MB. Free memory was 117.4 MB in the beginning and 103.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3146.42 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 136.7 MB in the beginning and 109.2 MB in the end (delta: 27.5 MB). Peak memory consumption was 58.4 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (!(\old(p2) == \old(p1)) || !(\old(p1) == \old(p2))) || a == b - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 14 SDslu, 34 SDs, 0 SdLazy, 62 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 8 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 173 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3626 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...