/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/brs4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:17:57,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:17:57,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:17:57,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:17:57,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:17:57,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:17:57,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:17:57,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:17:57,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:17:57,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:17:57,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:17:57,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:17:57,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:17:57,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:17:57,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:17:57,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:17:57,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:17:57,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:17:57,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:17:57,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:17:57,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:17:57,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:17:57,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:17:57,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:17:57,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:17:57,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:17:57,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:17:57,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:17:57,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:17:57,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:17:57,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:17:57,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:17:57,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:17:57,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:17:57,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:17:57,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:17:57,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:17:57,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:17:57,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:17:57,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:17:57,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:17:57,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:17:57,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:17:57,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:17:57,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:17:57,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:17:57,739 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:17:57,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:17:57,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:17:57,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:17:57,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:17:57,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:17:57,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:17:57,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:17:57,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:17:57,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:17:57,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:17:57,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:17:57,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:17:57,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:17:57,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:17:57,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:17:57,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:17:57,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:17:57,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:17:57,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:17:57,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:17:57,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:17:57,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:17:57,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:17:57,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:17:57,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:17:58,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:17:58,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:17:58,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:17:58,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:17:58,298 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:17:58,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs4f.c [2020-09-25 02:17:58,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/863e04f45/f9cebc3d38764a4bbeefc3abc349055d/FLAG926ef9c72 [2020-09-25 02:17:58,995 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:17:58,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs4f.c [2020-09-25 02:17:59,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/863e04f45/f9cebc3d38764a4bbeefc3abc349055d/FLAG926ef9c72 [2020-09-25 02:17:59,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/863e04f45/f9cebc3d38764a4bbeefc3abc349055d [2020-09-25 02:17:59,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:17:59,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:17:59,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:17:59,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:17:59,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:17:59,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df7be5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59, skipping insertion in model container [2020-09-25 02:17:59,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:17:59,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:17:59,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:17:59,693 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:17:59,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:17:59,735 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:17:59,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59 WrapperNode [2020-09-25 02:17:59,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:17:59,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:17:59,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:17:59,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:17:59,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... [2020-09-25 02:17:59,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:17:59,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:17:59,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:17:59,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:17:59,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:17:59,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:17:59,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:17:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:17:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:17:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:17:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:17:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:17:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:17:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:17:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:17:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:17:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:17:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:17:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:17:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:17:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:17:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:17:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:17:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:00,285 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:00,285 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 02:18:00,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:00 BoogieIcfgContainer [2020-09-25 02:18:00,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:00,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:00,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:00,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:00,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:59" (1/3) ... [2020-09-25 02:18:00,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461644a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:00, skipping insertion in model container [2020-09-25 02:18:00,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:59" (2/3) ... [2020-09-25 02:18:00,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461644a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:00, skipping insertion in model container [2020-09-25 02:18:00,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:00" (3/3) ... [2020-09-25 02:18:00,301 INFO L109 eAbstractionObserver]: Analyzing ICFG brs4f.c [2020-09-25 02:18:00,313 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:00,324 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:00,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:00,376 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:00,376 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:00,376 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:00,376 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:00,377 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:00,377 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:00,377 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:00,377 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-09-25 02:18:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:18:00,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:00,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:00,414 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:00,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:00,420 INFO L82 PathProgramCache]: Analyzing trace with hash 221259408, now seen corresponding path program 1 times [2020-09-25 02:18:00,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:00,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717327216] [2020-09-25 02:18:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:00,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:18:01,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:18:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-09-25 02:18:01,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 02:18:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:01,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:18:01,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:01,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:18:01,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:01,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:01,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:01,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:18:01,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:18:01,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717327216] [2020-09-25 02:18:01,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:01,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:18:01,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057843025] [2020-09-25 02:18:01,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:18:01,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:01,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:18:01,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:01,187 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2020-09-25 02:18:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:01,419 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-09-25 02:18:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:18:01,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-25 02:18:01,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:01,434 INFO L225 Difference]: With dead ends: 101 [2020-09-25 02:18:01,434 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 02:18:01,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 02:18:01,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 02:18:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 02:18:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2020-09-25 02:18:01,495 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 30 [2020-09-25 02:18:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:01,495 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2020-09-25 02:18:01,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:18:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-09-25 02:18:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:18:01,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:01,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:01,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:01,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:01,499 INFO L82 PathProgramCache]: Analyzing trace with hash -151091841, now seen corresponding path program 1 times [2020-09-25 02:18:01,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:01,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469665097] [2020-09-25 02:18:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:01,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:18:01,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:18:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 02:18:01,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:18:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:18:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:18:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:01,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:01,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:18:01,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:01,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:01,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:01,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:01,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:01,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:01,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 02:18:01,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:18:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:18:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:18:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:18:02,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469665097] [2020-09-25 02:18:02,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:02,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:18:02,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118847208] [2020-09-25 02:18:02,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:18:02,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:02,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:18:02,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:18:02,012 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 5 states. [2020-09-25 02:18:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:02,206 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-09-25 02:18:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:18:02,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 02:18:02,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:02,208 INFO L225 Difference]: With dead ends: 67 [2020-09-25 02:18:02,208 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 02:18:02,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:18:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 02:18:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-25 02:18:02,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 02:18:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2020-09-25 02:18:02,221 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 30 [2020-09-25 02:18:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:02,221 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2020-09-25 02:18:02,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:18:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2020-09-25 02:18:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 02:18:02,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:02,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:02,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:18:02,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:02,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1707000309, now seen corresponding path program 1 times [2020-09-25 02:18:02,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:02,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913093382] [2020-09-25 02:18:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:18:02,249 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:18:02,250 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:02,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:18:02,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:02 BoogieIcfgContainer [2020-09-25 02:18:02,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:02,286 INFO L168 Benchmark]: Toolchain (without parser) took 2934.40 ms. Allocated memory was 107.5 MB in the beginning and 183.5 MB in the end (delta: 76.0 MB). Free memory was 72.4 MB in the beginning and 94.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 54.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,287 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.5 MB. Free memory was 90.2 MB in the beginning and 90.1 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.79 ms. Allocated memory was 107.5 MB in the beginning and 123.2 MB in the end (delta: 15.7 MB). Free memory was 71.8 MB in the beginning and 99.1 MB in the end (delta: -27.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,291 INFO L168 Benchmark]: Boogie Preprocessor took 121.82 ms. Allocated memory was 123.2 MB in the beginning and 159.4 MB in the end (delta: 36.2 MB). Free memory was 99.1 MB in the beginning and 144.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 356.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,292 INFO L168 Benchmark]: RCFGBuilder took 431.91 ms. Allocated memory is still 159.4 MB. Free memory was 144.2 MB in the beginning and 126.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,293 INFO L168 Benchmark]: TraceAbstraction took 1987.25 ms. Allocated memory was 159.4 MB in the beginning and 183.5 MB in the end (delta: 24.1 MB). Free memory was 125.7 MB in the beginning and 94.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:02,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.5 MB. Free memory was 90.2 MB in the beginning and 90.1 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 382.79 ms. Allocated memory was 107.5 MB in the beginning and 123.2 MB in the end (delta: 15.7 MB). Free memory was 71.8 MB in the beginning and 99.1 MB in the end (delta: -27.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.82 ms. Allocated memory was 123.2 MB in the beginning and 159.4 MB in the end (delta: 36.2 MB). Free memory was 99.1 MB in the beginning and 144.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 356.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 431.91 ms. Allocated memory is still 159.4 MB. Free memory was 144.2 MB in the beginning and 126.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1987.25 ms. Allocated memory was 159.4 MB in the beginning and 183.5 MB in the end (delta: 24.1 MB). Free memory was 125.7 MB in the beginning and 94.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i