/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=DEEPEST --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/s3liff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:09:14,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:09:14,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:09:14,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:09:14,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:09:14,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:09:14,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:09:14,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:09:14,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:09:14,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:09:14,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:09:14,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:09:14,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:09:14,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:09:14,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:09:14,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:09:14,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:09:14,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:09:14,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:09:14,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:09:14,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:09:14,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:09:14,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:09:14,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:09:14,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:09:14,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:09:14,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:09:14,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:09:14,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:09:14,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:09:14,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:09:14,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:09:14,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:09:14,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:09:14,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:09:14,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:09:14,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:09:14,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:09:14,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:09:14,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:09:14,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:09:14,645 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 01:09:14,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:09:14,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:09:14,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:09:14,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:09:14,693 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:09:14,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:09:14,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:09:14,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:09:14,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:09:14,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:09:14,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:09:14,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:09:14,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:09:14,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:09:14,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:09:14,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:09:14,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:09:14,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:09:14,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:09:14,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:09:14,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:09:14,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:09:14,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:09:14,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:09:14,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:09:14,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:09:14,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:09:14,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:09:14,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:09:14,700 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:09:15,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:09:15,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:09:15,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:09:15,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:09:15,373 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:09:15,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s3liff.c [2020-09-25 01:09:15,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/188d2e7c7/bd33ab387660428788b6a8af61dcdbd7/FLAGcd7d51a25 [2020-09-25 01:09:16,016 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:09:16,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s3liff.c [2020-09-25 01:09:16,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/188d2e7c7/bd33ab387660428788b6a8af61dcdbd7/FLAGcd7d51a25 [2020-09-25 01:09:16,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/188d2e7c7/bd33ab387660428788b6a8af61dcdbd7 [2020-09-25 01:09:16,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:09:16,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:09:16,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:16,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:09:16,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:09:16,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:16,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1585d1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16, skipping insertion in model container [2020-09-25 01:09:16,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:16,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:09:16,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:09:16,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:16,855 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:09:16,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:16,902 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:09:16,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16 WrapperNode [2020-09-25 01:09:16,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:16,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:09:16,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:09:16,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:09:17,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (1/1) ... [2020-09-25 01:09:17,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:09:17,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:09:17,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:09:17,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:09:17,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (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 01:09:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:09:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:09:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:09:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:09:17,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:09:17,562 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:09:17,563 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 01:09:17,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:17 BoogieIcfgContainer [2020-09-25 01:09:17,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:09:17,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:09:17,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:09:17,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:09:17,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:09:16" (1/3) ... [2020-09-25 01:09:17,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7609ea27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:17, skipping insertion in model container [2020-09-25 01:09:17,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:16" (2/3) ... [2020-09-25 01:09:17,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7609ea27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:17, skipping insertion in model container [2020-09-25 01:09:17,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:17" (3/3) ... [2020-09-25 01:09:17,581 INFO L109 eAbstractionObserver]: Analyzing ICFG s3liff.c [2020-09-25 01:09:17,596 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:09:17,607 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:09:17,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:09:17,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:09:17,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:09:17,669 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:09:17,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:09:17,669 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:09:17,669 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:09:17,669 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:09:17,670 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:09:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 01:09:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 01:09:17,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:17,720 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] [2020-09-25 01:09:17,721 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:17,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:17,728 INFO L82 PathProgramCache]: Analyzing trace with hash -2050446892, now seen corresponding path program 1 times [2020-09-25 01:09:17,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:17,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931133115] [2020-09-25 01:09:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:17,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:17,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:18,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:09:18,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:09:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 01:09:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 01:09:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:09:18,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:18,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:09:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:09:18,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:09:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:18,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:09:18,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:09:18,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:18,370 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 01:09:18,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931133115] [2020-09-25 01:09:18,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:18,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:09:18,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951085927] [2020-09-25 01:09:18,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:09:18,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:18,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:09:18,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:09:18,408 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2020-09-25 01:09:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:18,634 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2020-09-25 01:09:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:09:18,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-25 01:09:18,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:18,649 INFO L225 Difference]: With dead ends: 125 [2020-09-25 01:09:18,649 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 01:09:18,654 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 01:09:18,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 01:09:18,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 01:09:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 01:09:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-09-25 01:09:18,715 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 33 [2020-09-25 01:09:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:18,716 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-09-25 01:09:18,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:09:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-09-25 01:09:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 01:09:18,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:18,718 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] [2020-09-25 01:09:18,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:09:18,719 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:18,720 INFO L82 PathProgramCache]: Analyzing trace with hash -341126016, now seen corresponding path program 1 times [2020-09-25 01:09:18,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:18,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415906959] [2020-09-25 01:09:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:18,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:19,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:19,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:09:19,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:09:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 640 [2020-09-25 01:09:19,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:09:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 01:09:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:09:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:19,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:19,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:19,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:09:19,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:09:19,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:19,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:19,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:09:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:19,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:19,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:09:19,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:19,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:09:19,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:09:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:09:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:19,473 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 01:09:19,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415906959] [2020-09-25 01:09:19,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:19,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:09:19,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792696006] [2020-09-25 01:09:19,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:09:19,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:19,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:09:19,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:09:19,478 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states. [2020-09-25 01:09:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:19,655 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-09-25 01:09:19,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:09:19,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-25 01:09:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:19,658 INFO L225 Difference]: With dead ends: 93 [2020-09-25 01:09:19,658 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 01:09:19,659 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 01:09:19,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 01:09:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 01:09:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 01:09:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-09-25 01:09:19,670 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 33 [2020-09-25 01:09:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:19,670 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-09-25 01:09:19,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:09:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-09-25 01:09:19,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 01:09:19,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:19,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:19,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:09:19,674 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:19,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:19,675 INFO L82 PathProgramCache]: Analyzing trace with hash 746418975, now seen corresponding path program 1 times [2020-09-25 01:09:19,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:19,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975641464] [2020-09-25 01:09:19,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:09:19,732 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:09:19,732 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:09:19,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:09:19,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:09:19 BoogieIcfgContainer [2020-09-25 01:09:19,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:09:19,779 INFO L168 Benchmark]: Toolchain (without parser) took 3399.60 ms. Allocated memory was 145.8 MB in the beginning and 234.4 MB in the end (delta: 88.6 MB). Free memory was 102.0 MB in the beginning and 139.3 MB in the end (delta: -37.4 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:19,782 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:09:19,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.71 ms. Allocated memory is still 145.8 MB. Free memory was 101.3 MB in the beginning and 90.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:19,785 INFO L168 Benchmark]: Boogie Preprocessor took 234.86 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 90.3 MB in the beginning and 181.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:19,787 INFO L168 Benchmark]: RCFGBuilder took 431.62 ms. Allocated memory is still 204.5 MB. Free memory was 181.3 MB in the beginning and 161.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:19,791 INFO L168 Benchmark]: TraceAbstraction took 2198.88 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 160.5 MB in the beginning and 139.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:19,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 505.71 ms. Allocated memory is still 145.8 MB. Free memory was 101.3 MB in the beginning and 90.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 234.86 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 90.3 MB in the beginning and 181.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.62 ms. Allocated memory is still 204.5 MB. Free memory was 181.3 MB in the beginning and 161.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2198.88 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 160.5 MB in the beginning and 139.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 51.1 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] sum[0] = N [L30] i=0 [L30] COND TRUE i