/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:09:07,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:09:07,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:09:07,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:09:07,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:09:07,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:09:07,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:09:07,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:09:07,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:09:07,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:09:07,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:09:07,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:09:07,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:09:07,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:09:07,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:09:07,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:09:07,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:09:07,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:09:07,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:09:07,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:09:07,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:09:07,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:09:07,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:09:07,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:09:07,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:09:07,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:09:07,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:09:07,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:09:07,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:09:07,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:09:07,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:09:07,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:09:07,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:09:07,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:09:07,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:09:07,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:09:07,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:09:07,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:09:07,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:09:07,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:09:07,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:09:07,710 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 [2020-08-22 03:09:07,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:09:07,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:09:07,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:09:07,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:09:07,754 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:09:07,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:09:07,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:09:07,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:09:07,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:09:07,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:09:07,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:09:07,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:09:07,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:09:07,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:09:07,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:09:07,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:09:07,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:09:07,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:09:07,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:09:07,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:09:07,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:09:07,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:09:07,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:09:07,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:09:07,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:09:07,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:09:07,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:09:07,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:09:07,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:09:07,760 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 -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-22 03:09:08,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:09:08,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:09:08,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:09:08,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:09:08,120 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:09:08,121 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-08-22 03:09:08,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232db145/f143a82981a5471ba11303808172ded0/FLAGe53ee617f [2020-08-22 03:09:08,623 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:09:08,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c [2020-08-22 03:09:08,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232db145/f143a82981a5471ba11303808172ded0/FLAGe53ee617f [2020-08-22 03:09:09,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232db145/f143a82981a5471ba11303808172ded0 [2020-08-22 03:09:09,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:09:09,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:09:09,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:09:09,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:09:09,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:09:09,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ebed4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09, skipping insertion in model container [2020-08-22 03:09:09,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:09:09,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:09:09,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:09:09,255 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:09:09,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:09:09,386 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:09:09,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09 WrapperNode [2020-08-22 03:09:09,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:09:09,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:09:09,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:09:09,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:09:09,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (1/1) ... [2020-08-22 03:09:09,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:09:09,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:09:09,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:09:09,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:09:09,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (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 [2020-08-22 03:09:09,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:09:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:09:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 03:09:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 03:09:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:09:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:09:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 03:09:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 03:09:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 03:09:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:09:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 03:09:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:09:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 03:09:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 03:09:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 03:09:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 03:09:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 03:09:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:09:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:09:09,910 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:09:09,910 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 03:09:09,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:09:09 BoogieIcfgContainer [2020-08-22 03:09:09,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:09:09,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:09:09,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:09:09,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:09:09,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:09:09" (1/3) ... [2020-08-22 03:09:09,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2a86dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:09:09, skipping insertion in model container [2020-08-22 03:09:09,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:09:09" (2/3) ... [2020-08-22 03:09:09,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2a86dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:09:09, skipping insertion in model container [2020-08-22 03:09:09,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:09:09" (3/3) ... [2020-08-22 03:09:09,928 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-08-22 03:09:09,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:09:09,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:09:09,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:09:09,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:09:09,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:09:09,990 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:09:09,990 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:09:09,990 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:09:09,990 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:09:09,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:09:09,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:09:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-08-22 03:09:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 03:09:10,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:09:10,018 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] [2020-08-22 03:09:10,019 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:09:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:09:10,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-08-22 03:09:10,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:09:10,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732496702] [2020-08-22 03:09:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:09:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:09:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:09:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:09:10,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732496702] [2020-08-22 03:09:10,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:09:10,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 03:09:10,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105430087] [2020-08-22 03:09:10,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 03:09:10,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:09:10,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 03:09:10,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 03:09:10,255 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-08-22 03:09:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:09:10,388 INFO L93 Difference]: Finished difference Result 66 states and 87 transitions. [2020-08-22 03:09:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 03:09:10,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-08-22 03:09:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:09:10,400 INFO L225 Difference]: With dead ends: 66 [2020-08-22 03:09:10,400 INFO L226 Difference]: Without dead ends: 33 [2020-08-22 03:09:10,404 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 [2020-08-22 03:09:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-22 03:09:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-22 03:09:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-22 03:09:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-22 03:09:10,449 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-08-22 03:09:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:09:10,450 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-22 03:09:10,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 03:09:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-22 03:09:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 03:09:10,451 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:09:10,452 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] [2020-08-22 03:09:10,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:09:10,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:09:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:09:10,453 INFO L82 PathProgramCache]: Analyzing trace with hash 34447140, now seen corresponding path program 1 times [2020-08-22 03:09:10,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:09:10,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658064342] [2020-08-22 03:09:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:09:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:09:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:09:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:09:10,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658064342] [2020-08-22 03:09:10,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:09:10,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 03:09:10,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873825869] [2020-08-22 03:09:10,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:09:10,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:09:10,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:09:10,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:09:10,628 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-22 03:09:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:09:10,797 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-08-22 03:09:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 03:09:10,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-08-22 03:09:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:09:10,802 INFO L225 Difference]: With dead ends: 62 [2020-08-22 03:09:10,802 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 03:09:10,803 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 [2020-08-22 03:09:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 03:09:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-08-22 03:09:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-22 03:09:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-08-22 03:09:10,819 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-08-22 03:09:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:09:10,820 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-08-22 03:09:10,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:09:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-08-22 03:09:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 03:09:10,822 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:09:10,822 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] [2020-08-22 03:09:10,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:09:10,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:09:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:09:10,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-08-22 03:09:10,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:09:10,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158516973] [2020-08-22 03:09:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:09:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:09:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:11,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:09:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:09:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:09:11,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158516973] [2020-08-22 03:09:11,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:09:11,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 03:09:11,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801413201] [2020-08-22 03:09:11,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 03:09:11,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:09:11,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 03:09:11,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 03:09:11,189 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2020-08-22 03:09:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:09:11,593 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-08-22 03:09:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 03:09:11,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-08-22 03:09:11,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:09:11,595 INFO L225 Difference]: With dead ends: 59 [2020-08-22 03:09:11,595 INFO L226 Difference]: Without dead ends: 45 [2020-08-22 03:09:11,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:09:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-08-22 03:09:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-08-22 03:09:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-22 03:09:11,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2020-08-22 03:09:11,606 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 31 [2020-08-22 03:09:11,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:09:11,606 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2020-08-22 03:09:11,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 03:09:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-08-22 03:09:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 03:09:11,611 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:09:11,611 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] [2020-08-22 03:09:11,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:09:11,612 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:09:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:09:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-08-22 03:09:11,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:09:11,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651289292] [2020-08-22 03:09:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:09:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 03:09:11,683 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 03:09:11,684 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 03:09:11,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:09:11,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:09:11 BoogieIcfgContainer [2020-08-22 03:09:11,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:09:11,715 INFO L168 Benchmark]: Toolchain (without parser) took 2696.44 ms. Allocated memory was 148.4 MB in the beginning and 233.3 MB in the end (delta: 84.9 MB). Free memory was 104.2 MB in the beginning and 125.5 MB in the end (delta: -21.3 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,717 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.96 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.9 MB in the beginning and 184.3 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,720 INFO L168 Benchmark]: Boogie Preprocessor took 44.99 ms. Allocated memory is still 205.5 MB. Free memory was 184.3 MB in the beginning and 182.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,722 INFO L168 Benchmark]: RCFGBuilder took 482.28 ms. Allocated memory is still 205.5 MB. Free memory was 182.0 MB in the beginning and 163.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,728 INFO L168 Benchmark]: TraceAbstraction took 1795.37 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 163.2 MB in the beginning and 125.5 MB in the end (delta: 37.7 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2020-08-22 03:09:11,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 368.96 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.9 MB in the beginning and 184.3 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.99 ms. Allocated memory is still 205.5 MB. Free memory was 184.3 MB in the beginning and 182.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 482.28 ms. Allocated memory is still 205.5 MB. Free memory was 182.0 MB in the beginning and 163.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1795.37 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 163.2 MB in the beginning and 125.5 MB in the end (delta: 37.7 MB). Peak memory consumption was 65.5 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] sum[0] = 0 [L30] i=0 [L30] COND TRUE i