/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/loops/terminator_03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 20:37:18,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:37:18,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:37:18,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:37:18,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:37:18,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:37:18,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:37:18,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:37:18,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:37:18,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:37:18,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:37:18,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:37:18,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:37:18,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:37:18,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:37:18,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:37:18,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:37:18,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:37:18,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:37:18,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:37:18,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:37:18,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:37:18,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:37:18,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:37:18,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:37:18,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:37:18,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:37:18,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:37:18,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:37:18,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:37:18,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:37:18,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:37:18,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:37:18,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:37:18,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:37:18,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:37:18,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:37:18,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:37:18,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:37:18,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:37:18,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:37:18,698 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 20:37:18,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:37:18,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:37:18,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:37:18,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:37:18,726 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:37:18,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:37:18,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:37:18,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:37:18,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:37:18,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:37:18,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:37:18,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:37:18,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:37:18,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:37:18,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:37:18,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:37:18,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:37:18,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:37:18,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:37:18,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:37:18,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:37:18,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:37:18,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:37:18,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:37:18,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:37:19,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:37:19,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:37:19,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:37:19,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:37:19,144 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:37:19,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i [2020-10-27 20:37:19,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a1b77721/621bad0054204714b07559c38b438bb3/FLAG3b11dca12 [2020-10-27 20:37:19,873 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:37:19,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_03-2.i [2020-10-27 20:37:19,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a1b77721/621bad0054204714b07559c38b438bb3/FLAG3b11dca12 [2020-10-27 20:37:20,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a1b77721/621bad0054204714b07559c38b438bb3 [2020-10-27 20:37:20,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:37:20,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:37:20,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:37:20,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:37:20,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:37:20,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20, skipping insertion in model container [2020-10-27 20:37:20,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:37:20,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:37:20,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:37:20,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:37:20,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:37:20,519 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:37:20,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20 WrapperNode [2020-10-27 20:37:20,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:37:20,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:37:20,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:37:20,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:37:20,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (1/1) ... [2020-10-27 20:37:20,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:37:20,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:37:20,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:37:20,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:37:20,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (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 20:37:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:37:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:37:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:37:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 20:37:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 20:37:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:37:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:37:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:37:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 20:37:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 20:37:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:37:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:37:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 20:37:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 20:37:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 20:37:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 20:37:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:37:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:37:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:37:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:37:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:37:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:37:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:37:21,251 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:37:21,252 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 20:37:21,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:37:21 BoogieIcfgContainer [2020-10-27 20:37:21,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:37:21,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:37:21,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:37:21,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:37:21,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:37:20" (1/3) ... [2020-10-27 20:37:21,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c02d0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:37:21, skipping insertion in model container [2020-10-27 20:37:21,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:20" (2/3) ... [2020-10-27 20:37:21,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c02d0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:37:21, skipping insertion in model container [2020-10-27 20:37:21,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:37:21" (3/3) ... [2020-10-27 20:37:21,267 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i [2020-10-27 20:37:21,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:37:21,284 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:37:21,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:37:21,343 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:37:21,344 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:37:21,344 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:37:21,344 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:37:21,344 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:37:21,345 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:37:21,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:37:21,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:37:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 20:37:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 20:37:21,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:37:21,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:37:21,384 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:37:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:37:21,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1531997128, now seen corresponding path program 1 times [2020-10-27 20:37:21,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:37:21,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100662639] [2020-10-27 20:37:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:37:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:21,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 20:37:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-27 20:37:21,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:37:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 20:37:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:37:21,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:37:21,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:37:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:21,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:21,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:21,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:37:21,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:37:21,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:37:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:37:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:37:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:37:21,952 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 20:37:21,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100662639] [2020-10-27 20:37:21,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:37:21,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:37:21,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586875749] [2020-10-27 20:37:21,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:37:21,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:37:21,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:37:21,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:37:21,980 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-10-27 20:37:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:37:22,322 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-10-27 20:37:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 20:37:22,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-27 20:37:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:37:22,333 INFO L225 Difference]: With dead ends: 48 [2020-10-27 20:37:22,333 INFO L226 Difference]: Without dead ends: 16 [2020-10-27 20:37:22,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:37:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-27 20:37:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-27 20:37:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-27 20:37:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-27 20:37:22,381 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-10-27 20:37:22,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:37:22,382 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-27 20:37:22,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:37:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-27 20:37:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 20:37:22,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:37:22,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:37:22,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:37:22,384 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:37:22,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:37:22,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1445745171, now seen corresponding path program 1 times [2020-10-27 20:37:22,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:37:22,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874042032] [2020-10-27 20:37:22,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:37:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:22,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 20:37:22,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:22,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 20:37:22,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:37:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 20:37:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:37:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:37:22,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:37:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:22,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:22,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:22,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:37:22,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:37:22,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:37:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:37:22,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:37:22,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:37:22,750 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 20:37:22,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874042032] [2020-10-27 20:37:22,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:37:22,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:37:22,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815887591] [2020-10-27 20:37:22,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:37:22,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:37:22,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:37:22,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:37:22,764 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-10-27 20:37:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:37:22,923 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-10-27 20:37:22,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:37:22,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 20:37:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:37:22,924 INFO L225 Difference]: With dead ends: 16 [2020-10-27 20:37:22,925 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 20:37:22,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:37:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 20:37:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 20:37:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 20:37:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 20:37:22,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-27 20:37:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:37:22,927 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 20:37:22,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:37:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 20:37:22,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 20:37:22,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:37:22,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 20:37:23,188 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 7 [2020-10-27 20:37:23,222 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-27 20:37:23,222 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-27 20:37:23,222 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-27 20:37:23,222 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-27 20:37:23,223 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-27 20:37:23,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:37:23,223 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-27 20:37:23,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:37:23,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 20:37:23,224 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 20:37:23,224 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L274 CegarLoopResult]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2020-10-27 20:37:23,224 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 25 36) the Hoare annotation is: true [2020-10-27 20:37:23,225 INFO L274 CegarLoopResult]: For program point L29(lines 29 33) no Hoare annotation was computed. [2020-10-27 20:37:23,225 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-27 20:37:23,225 INFO L277 CegarLoopResult]: At program point L30-2(lines 30 32) the Hoare annotation is: true [2020-10-27 20:37:23,225 INFO L270 CegarLoopResult]: At program point L29-1(lines 29 33) the Hoare annotation is: (or (<= main_~y~0 0) (< 99 main_~x~0)) [2020-10-27 20:37:23,225 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 25 36) no Hoare annotation was computed. [2020-10-27 20:37:23,225 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 25 36) no Hoare annotation was computed. [2020-10-27 20:37:23,225 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-27 20:37:23,226 INFO L274 CegarLoopResult]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2020-10-27 20:37:23,226 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2020-10-27 20:37:23,226 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2020-10-27 20:37:23,226 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-27 20:37:23,226 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-10-27 20:37:23,226 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-27 20:37:23,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:37:23 BoogieIcfgContainer [2020-10-27 20:37:23,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:37:23,238 INFO L168 Benchmark]: Toolchain (without parser) took 2992.51 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 117.2 MB in the beginning and 164.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:23,239 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 161.5 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:37:23,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.17 ms. Allocated memory is still 161.5 MB. Free memory was 145.2 MB in the beginning and 135.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:23,241 INFO L168 Benchmark]: Boogie Preprocessor took 89.02 ms. Allocated memory is still 161.5 MB. Free memory was 135.4 MB in the beginning and 144.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:23,242 INFO L168 Benchmark]: RCFGBuilder took 642.22 ms. Allocated memory is still 161.5 MB. Free memory was 144.2 MB in the beginning and 130.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:23,243 INFO L168 Benchmark]: TraceAbstraction took 1978.10 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 130.2 MB in the beginning and 164.5 MB in the end (delta: -34.3 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:23,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 161.5 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.17 ms. Allocated memory is still 161.5 MB. Free memory was 145.2 MB in the beginning and 135.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.02 ms. Allocated memory is still 161.5 MB. Free memory was 135.4 MB in the beginning and 144.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 642.22 ms. Allocated memory is still 161.5 MB. Free memory was 144.2 MB in the beginning and 130.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1978.10 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 130.2 MB in the beginning and 164.5 MB in the end (delta: -34.3 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 34 SDslu, 45 SDs, 0 SdLazy, 82 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 41 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1229 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...