/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:55:01,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:55:01,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:55:01,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:55:01,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:55:01,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:55:01,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:55:01,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:55:01,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:55:01,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:55:01,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:55:01,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:55:01,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:55:01,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:55:01,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:55:01,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:55:01,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:55:01,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:55:01,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:55:01,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:55:01,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:55:01,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:55:01,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:55:01,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:55:01,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:55:01,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:55:01,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:55:01,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:55:01,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:55:01,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:55:01,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:55:01,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:55:01,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:55:01,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:55:01,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:55:01,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:55:01,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:55:01,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:55:01,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:55:01,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:55:01,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:55:01,718 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 19:55:01,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:55:01,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:55:01,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:55:01,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:55:01,755 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:55:01,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:55:01,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:55:01,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:55:01,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:55:01,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:55:01,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:55:01,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:55:01,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:55:01,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:55:01,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:55:01,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:55:01,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:55:01,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:55:01,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:55:01,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:55:01,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:55:01,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:55:01,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:55:01,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:55:01,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:55:01,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:55:01,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:55:01,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:55:01,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:55:01,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:55:02,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:55:02,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:55:02,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:55:02,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:55:02,288 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:55:02,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-10-27 19:55:02,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cec8384a/e6494789ed3e4abdbabb6eeb926654d7/FLAG7fae1baba [2020-10-27 19:55:03,135 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:55:03,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test09.c [2020-10-27 19:55:03,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cec8384a/e6494789ed3e4abdbabb6eeb926654d7/FLAG7fae1baba [2020-10-27 19:55:03,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cec8384a/e6494789ed3e4abdbabb6eeb926654d7 [2020-10-27 19:55:03,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:55:03,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:55:03,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:55:03,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:55:03,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:55:03,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193924e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03, skipping insertion in model container [2020-10-27 19:55:03,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:55:03,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:55:03,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:55:03,728 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:55:03,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:55:03,772 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:55:03,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03 WrapperNode [2020-10-27 19:55:03,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:55:03,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:55:03,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:55:03,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:55:03,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (1/1) ... [2020-10-27 19:55:03,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:55:03,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:55:03,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:55:03,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:55:03,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (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 19:55:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:55:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:55:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:55:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-27 19:55:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:55:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:55:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:55:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:55:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:55:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:55:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:55:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:55:04,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:55:04,248 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 19:55:04,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:04 BoogieIcfgContainer [2020-10-27 19:55:04,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:55:04,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:55:04,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:55:04,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:55:04,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:55:03" (1/3) ... [2020-10-27 19:55:04,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b0ca66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:04, skipping insertion in model container [2020-10-27 19:55:04,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:03" (2/3) ... [2020-10-27 19:55:04,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b0ca66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:04, skipping insertion in model container [2020-10-27 19:55:04,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:04" (3/3) ... [2020-10-27 19:55:04,263 INFO L111 eAbstractionObserver]: Analyzing ICFG test09.c [2020-10-27 19:55:04,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:55:04,286 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:55:04,333 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:55:04,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:55:04,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:55:04,365 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:55:04,366 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:55:04,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:55:04,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:55:04,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:55:04,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:55:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-27 19:55:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 19:55:04,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:04,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:04,401 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:04,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1827250340, now seen corresponding path program 1 times [2020-10-27 19:55:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:04,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874077584] [2020-10-27 19:55:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:04,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:05,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 19:55:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-27 19:55:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:55:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:55:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:55:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:55:05,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:05,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:05,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:05,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 19:55:05,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:05,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:55:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:05,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:55:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:55:05,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:55:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 19:55:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:05,332 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 19:55:05,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874077584] [2020-10-27 19:55:05,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:55:05,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:55:05,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420046010] [2020-10-27 19:55:05,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:55:05,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:05,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:55:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:55:05,370 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2020-10-27 19:55:05,554 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-27 19:55:05,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:05,659 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-27 19:55:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 19:55:05,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 19:55:05,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:05,671 INFO L225 Difference]: With dead ends: 38 [2020-10-27 19:55:05,671 INFO L226 Difference]: Without dead ends: 16 [2020-10-27 19:55:05,675 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 19:55:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-27 19:55:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-27 19:55:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-27 19:55:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-27 19:55:05,720 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-10-27 19:55:05,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:05,720 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-27 19:55:05,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:55:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-27 19:55:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 19:55:05,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:05,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:05,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:55:05,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1580213275, now seen corresponding path program 1 times [2020-10-27 19:55:05,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:05,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579590344] [2020-10-27 19:55:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:06,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 19:55:06,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:55:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-27 19:55:06,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:06,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 19:55:06,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:55:06,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 19:55:06,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:06,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:06,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:55:06,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:55:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:06,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:06,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 19:55:06,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 19:55:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 19:55:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 19:55:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 19:55:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:06,752 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 19:55:06,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579590344] [2020-10-27 19:55:06,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:55:06,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 19:55:06,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592415407] [2020-10-27 19:55:06,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 19:55:06,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:06,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 19:55:06,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 19:55:06,763 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 9 states. [2020-10-27 19:55:07,108 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-10-27 19:55:07,242 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-10-27 19:55:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:07,272 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-27 19:55:07,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 19:55:07,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-27 19:55:07,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:07,273 INFO L225 Difference]: With dead ends: 16 [2020-10-27 19:55:07,273 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 19:55:07,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-27 19:55:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 19:55:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 19:55:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 19:55:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 19:55:07,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-27 19:55:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:07,276 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 19:55:07,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 19:55:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 19:55:07,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 19:55:07,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:55:07,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 19:55:07,586 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2020-10-27 19:55:07,589 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 19:55:07,589 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 19:55:07,590 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 19:55:07,590 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 19:55:07,590 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 19:55:07,590 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 19:55:07,590 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 19:55:07,591 INFO L274 CegarLoopResult]: For program point L11(lines 11 16) no Hoare annotation was computed. [2020-10-27 19:55:07,591 INFO L274 CegarLoopResult]: For program point fEXIT(lines 9 17) no Hoare annotation was computed. [2020-10-27 19:55:07,591 INFO L270 CegarLoopResult]: At program point fENTRY(lines 9 17) the Hoare annotation is: (let ((.cse1 (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1))) (let ((.cse0 (not .cse1))) (or (and .cse0 (or (not (= |old(~p1~0.offset)| ~p2~0.offset)) (not (= |old(~p1~0.base)| ~p2~0.base)))) (and (or .cse0 (= ~p1~0.offset |~#a~0.offset|)) (= |old(~p1~0.base)| ~p1~0.base) (or .cse1 (= ~p2~0.offset ~p1~0.offset))) (and (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|))) .cse1)))) [2020-10-27 19:55:07,591 INFO L274 CegarLoopResult]: For program point fFINAL(lines 9 17) no Hoare annotation was computed. [2020-10-27 19:55:07,591 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 19:55:07,592 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)) [2020-10-27 19:55:07,592 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 19:55:07,592 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 19:55:07,592 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-10-27 19:55:07,593 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))) [2020-10-27 19:55:07,593 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)|)) (let ((.cse0 (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1))) (and (or (not .cse0) (and (= |~#a~0.base| ~p1~0.base) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4) (= ~p1~0.offset |~#a~0.offset|))) (or (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) .cse0)))) [2020-10-27 19:55:07,593 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 19 41) no Hoare annotation was computed. [2020-10-27 19:55:07,593 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-27 19:55:07,593 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 19 41) no Hoare annotation was computed. [2020-10-27 19:55:07,594 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 19:55:07,594 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)|))) [2020-10-27 19:55:07,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:55:07 BoogieIcfgContainer [2020-10-27 19:55:07,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:55:07,615 INFO L168 Benchmark]: Toolchain (without parser) took 4126.73 ms. Allocated memory was 125.8 MB in the beginning and 191.9 MB in the end (delta: 66.1 MB). Free memory was 101.0 MB in the beginning and 156.9 MB in the end (delta: -55.9 MB). Peak memory consumption was 85.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:55:07,616 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:55:07,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.31 ms. Allocated memory is still 125.8 MB. Free memory was 100.3 MB in the beginning and 91.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:55:07,618 INFO L168 Benchmark]: Boogie Preprocessor took 61.93 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:55:07,619 INFO L168 Benchmark]: RCFGBuilder took 411.10 ms. Allocated memory is still 125.8 MB. Free memory was 89.7 MB in the beginning and 75.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:55:07,620 INFO L168 Benchmark]: TraceAbstraction took 3359.64 ms. Allocated memory was 125.8 MB in the beginning and 191.9 MB in the end (delta: 66.1 MB). Free memory was 75.2 MB in the beginning and 156.9 MB in the end (delta: -81.8 MB). Peak memory consumption was 59.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:55:07,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 280.31 ms. Allocated memory is still 125.8 MB. Free memory was 100.3 MB in the beginning and 91.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.93 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 411.10 ms. Allocated memory is still 125.8 MB. Free memory was 89.7 MB in the beginning and 75.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3359.64 ms. Allocated memory was 125.8 MB in the beginning and 191.9 MB in the end (delta: 66.1 MB). Free memory was 75.2 MB in the beginning and 156.9 MB in the end (delta: -81.8 MB). Peak memory consumption was 59.6 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)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 24 SDslu, 38 SDs, 0 SdLazy, 68 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s 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, 214 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 5740 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...