/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/sina4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:35:13,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:35:13,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:35:13,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:35:13,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:35:13,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:35:13,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:35:13,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:35:13,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:35:13,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:35:13,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:35:13,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:35:13,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:35:13,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:35:13,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:35:13,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:35:13,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:35:13,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:35:13,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:35:13,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:35:13,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:35:13,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:35:13,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:35:13,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:35:13,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:35:13,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:35:13,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:35:13,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:35:13,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:35:13,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:35:13,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:35:13,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:35:13,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:35:13,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:35:13,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:35:13,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:35:13,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:35:13,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:35:13,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:35:13,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:35:13,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:35:13,633 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 [2020-09-21 12:35:13,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:35:13,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:35:13,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:35:13,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:35:13,699 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:35:13,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:35:13,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:35:13,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:35:13,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:35:13,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:35:13,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:35:13,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:35:13,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:35:13,704 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:35:13,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:35:13,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:35:13,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:35:13,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:35:13,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:35:13,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:35:13,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:35:13,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:35:13,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:35:13,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:35:13,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:35:13,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:35:13,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:35:13,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:35:13,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:35:13,709 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:35:14,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:35:14,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:35:14,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:35:14,233 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:35:14,235 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:35:14,237 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina4f.c [2020-09-21 12:35:14,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf66060fa/538f54e2596d4a749e36aaa493337793/FLAGc868e55f9 [2020-09-21 12:35:14,874 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:35:14,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina4f.c [2020-09-21 12:35:14,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf66060fa/538f54e2596d4a749e36aaa493337793/FLAGc868e55f9 [2020-09-21 12:35:15,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf66060fa/538f54e2596d4a749e36aaa493337793 [2020-09-21 12:35:15,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:35:15,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:35:15,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:15,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:35:15,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:35:15,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260ceee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15, skipping insertion in model container [2020-09-21 12:35:15,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:35:15,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:35:15,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:15,594 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:35:15,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:15,640 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:35:15,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15 WrapperNode [2020-09-21 12:35:15,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:15,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:35:15,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:35:15,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:35:15,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (1/1) ... [2020-09-21 12:35:15,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:35:15,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:35:15,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:35:15,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:35:15,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (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 [2020-09-21 12:35:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:35:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:35:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:35:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 12:35:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:35:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:35:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:35:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:35:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 12:35:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:35:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:35:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:35:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:35:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:35:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:35:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:35:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:35:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:35:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:35:16,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:35:16,198 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:35:16,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:16 BoogieIcfgContainer [2020-09-21 12:35:16,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:35:16,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:35:16,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:35:16,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:35:16,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:35:15" (1/3) ... [2020-09-21 12:35:16,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451370fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:16, skipping insertion in model container [2020-09-21 12:35:16,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:15" (2/3) ... [2020-09-21 12:35:16,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451370fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:16, skipping insertion in model container [2020-09-21 12:35:16,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:16" (3/3) ... [2020-09-21 12:35:16,215 INFO L109 eAbstractionObserver]: Analyzing ICFG sina4f.c [2020-09-21 12:35:16,229 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:35:16,239 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:35:16,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:35:16,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:35:16,298 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:35:16,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:35:16,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:35:16,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:35:16,299 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:35:16,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:35:16,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:35:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-21 12:35:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:35:16,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:16,335 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] [2020-09-21 12:35:16,335 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:16,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:16,342 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-09-21 12:35:16,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:16,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364690229] [2020-09-21 12:35:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:16,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:16,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:16,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:16,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:17,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 12:35:17,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:35:17,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-21 12:35:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:35:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 12:35:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:35:17,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:17,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:35:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:17,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:17,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:35:17,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:17,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:35:17,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:35:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:17,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:35:17,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364690229] [2020-09-21 12:35:17,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:17,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:35:17,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116016866] [2020-09-21 12:35:17,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:35:17,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:17,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:35:17,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:35:17,725 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-09-21 12:35:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:35:17,910 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-09-21 12:35:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:35:17,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-21 12:35:17,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:35:17,924 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:35:17,924 INFO L226 Difference]: Without dead ends: 35 [2020-09-21 12:35:17,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:35:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-21 12:35:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-21 12:35:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-21 12:35:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-09-21 12:35:17,974 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-09-21 12:35:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:35:17,975 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-09-21 12:35:17,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:35:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-09-21 12:35:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:35:17,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:17,977 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] [2020-09-21 12:35:17,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:35:17,977 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:17,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-09-21 12:35:17,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:17,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876428326] [2020-09-21 12:35:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:18,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:18,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 12:35:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:35:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:35:18,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:35:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:35:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:35:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:19,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:19,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:19,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:19,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:35:19,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:19,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:19,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:35:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:19,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:19,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:19,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:35:19,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:35:19,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:35:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:35:19,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:35:19,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876428326] [2020-09-21 12:35:19,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:19,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:35:19,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969020118] [2020-09-21 12:35:19,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:35:19,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:19,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:35:19,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:35:19,095 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-09-21 12:35:19,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:35:19,294 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-09-21 12:35:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:35:19,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-09-21 12:35:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:35:19,299 INFO L225 Difference]: With dead ends: 67 [2020-09-21 12:35:19,299 INFO L226 Difference]: Without dead ends: 47 [2020-09-21 12:35:19,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:35:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-21 12:35:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-09-21 12:35:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:35:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-09-21 12:35:19,318 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-09-21 12:35:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:35:19,318 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-09-21 12:35:19,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:35:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-09-21 12:35:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-21 12:35:19,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:19,320 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] [2020-09-21 12:35:19,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:35:19,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:19,321 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-09-21 12:35:19,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:19,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251758138] [2020-09-21 12:35:19,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:35:19,353 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:35:19,353 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:35:19,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:35:19,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:35:19 BoogieIcfgContainer [2020-09-21 12:35:19,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:35:19,387 INFO L168 Benchmark]: Toolchain (without parser) took 4145.64 ms. Allocated memory was 141.0 MB in the beginning and 245.4 MB in the end (delta: 104.3 MB). Free memory was 104.6 MB in the beginning and 201.9 MB in the end (delta: -97.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:19,388 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:35:19,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.68 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:19,390 INFO L168 Benchmark]: Boogie Preprocessor took 131.81 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 93.1 MB in the beginning and 179.8 MB in the end (delta: -86.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:19,391 INFO L168 Benchmark]: RCFGBuilder took 430.59 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 160.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:19,392 INFO L168 Benchmark]: TraceAbstraction took 3177.68 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 159.7 MB in the beginning and 201.9 MB in the end (delta: -42.2 MB). Peak memory consumption was 820.2 kB. Max. memory is 7.1 GB. [2020-09-21 12:35:19,396 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 389.68 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.81 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 93.1 MB in the beginning and 179.8 MB in the end (delta: -86.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.59 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 160.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3177.68 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 159.7 MB in the beginning and 201.9 MB in the end (delta: -42.2 MB). Peak memory consumption was 820.2 kB. 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] long long *a = malloc(sizeof(long long)*N); [L28] long long *b = malloc(sizeof(long long)*N); [L30] sum[0] = 0 [L31] i=0 [L31] COND TRUE i