/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s2iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:01:54,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:01:54,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:01:54,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:01:54,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:01:54,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:01:54,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:01:54,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:01:54,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:01:54,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:01:54,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:01:54,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:01:54,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:01:54,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:01:54,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:01:54,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:01:54,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:01:54,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:01:54,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:01:54,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:01:54,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:01:54,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:01:54,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:01:54,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:01:54,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:01:54,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:01:54,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:01:54,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:01:54,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:01:54,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:01:54,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:01:54,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:01:54,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:01:54,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:01:54,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:01:54,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:01:54,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:01:54,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:01:54,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:01:54,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:01:54,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:01:54,783 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 [2020-08-18 22:01:54,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:01:54,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:01:54,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:01:54,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:01:54,807 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:01:54,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:01:54,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:01:54,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:01:54,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:01:54,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:01:54,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:01:54,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:01:54,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:01:54,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:01:54,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:01:54,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:01:54,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:01:54,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:01:54,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:01:54,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:01:54,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:01:54,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:01:54,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:01:54,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:01:54,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:01:54,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:01:54,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:01:54,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:01:54,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:01:54,815 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=5;interpolation-heuristic=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 22:01:55,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:01:55,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:01:55,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:01:55,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:01:55,161 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:01:55,163 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s2iff.c [2020-08-18 22:01:55,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ba4c9280/f86a78ed8b3b4ab090fe0b9a25dd3db8/FLAGfe1d295d4 [2020-08-18 22:01:55,716 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:01:55,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s2iff.c [2020-08-18 22:01:55,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ba4c9280/f86a78ed8b3b4ab090fe0b9a25dd3db8/FLAGfe1d295d4 [2020-08-18 22:01:56,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ba4c9280/f86a78ed8b3b4ab090fe0b9a25dd3db8 [2020-08-18 22:01:56,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:01:56,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:01:56,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:01:56,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:01:56,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:01:56,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3add5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56, skipping insertion in model container [2020-08-18 22:01:56,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:01:56,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:01:56,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:01:56,324 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:01:56,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:01:56,365 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:01:56,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56 WrapperNode [2020-08-18 22:01:56,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:01:56,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:01:56,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:01:56,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:01:56,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (1/1) ... [2020-08-18 22:01:56,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:01:56,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:01:56,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:01:56,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:01:56,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (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 [2020-08-18 22:01:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:01:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:01:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 22:01:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 22:01:56,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:01:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:01:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 22:01:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 22:01:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:01:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:01:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:01:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:01:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:01:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:01:56,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:01:56,899 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-18 22:01:56,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:01:56 BoogieIcfgContainer [2020-08-18 22:01:56,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:01:56,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:01:56,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:01:56,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:01:56,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:01:56" (1/3) ... [2020-08-18 22:01:56,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81376ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:01:56, skipping insertion in model container [2020-08-18 22:01:56,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:01:56" (2/3) ... [2020-08-18 22:01:56,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81376ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:01:56, skipping insertion in model container [2020-08-18 22:01:56,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:01:56" (3/3) ... [2020-08-18 22:01:56,917 INFO L109 eAbstractionObserver]: Analyzing ICFG s2iff.c [2020-08-18 22:01:56,927 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:01:56,936 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:01:56,950 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:01:56,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:01:56,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:01:56,979 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:01:56,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:01:56,980 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:01:56,980 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:01:56,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:01:56,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:01:56,998 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-08-18 22:01:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-18 22:01:57,004 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:01:57,005 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] [2020-08-18 22:01:57,005 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:01:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:01:57,010 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-08-18 22:01:57,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:01:57,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096128539] [2020-08-18 22:01:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:01:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:01:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:01:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:01:57,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096128539] [2020-08-18 22:01:57,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:01:57,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 22:01:57,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585386677] [2020-08-18 22:01:57,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 22:01:57,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:01:57,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 22:01:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 22:01:57,226 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-08-18 22:01:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:01:57,343 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-08-18 22:01:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 22:01:57,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-08-18 22:01:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:01:57,355 INFO L225 Difference]: With dead ends: 54 [2020-08-18 22:01:57,356 INFO L226 Difference]: Without dead ends: 25 [2020-08-18 22:01:57,360 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 [2020-08-18 22:01:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-08-18 22:01:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-08-18 22:01:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-08-18 22:01:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-08-18 22:01:57,403 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-08-18 22:01:57,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:01:57,404 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-08-18 22:01:57,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 22:01:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-08-18 22:01:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-18 22:01:57,405 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:01:57,405 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] [2020-08-18 22:01:57,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:01:57,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:01:57,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:01:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-08-18 22:01:57,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:01:57,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416100828] [2020-08-18 22:01:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:01:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:01:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:01:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:01:57,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416100828] [2020-08-18 22:01:57,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:01:57,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:01:57,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352474840] [2020-08-18 22:01:57,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:01:57,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:01:57,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:01:57,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:01:57,557 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-08-18 22:01:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:01:57,674 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2020-08-18 22:01:57,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:01:57,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-18 22:01:57,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:01:57,676 INFO L225 Difference]: With dead ends: 40 [2020-08-18 22:01:57,676 INFO L226 Difference]: Without dead ends: 30 [2020-08-18 22:01:57,677 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 [2020-08-18 22:01:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-18 22:01:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-08-18 22:01:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-18 22:01:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-08-18 22:01:57,685 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-08-18 22:01:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:01:57,686 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-08-18 22:01:57,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:01:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-08-18 22:01:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 22:01:57,687 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:01:57,687 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] [2020-08-18 22:01:57,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:01:57,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:01:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:01:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-08-18 22:01:57,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:01:57,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766994347] [2020-08-18 22:01:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:01:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:58,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:01:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:01:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:01:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:01:58,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766994347] [2020-08-18 22:01:58,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:01:58,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-18 22:01:58,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62882591] [2020-08-18 22:01:58,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 22:01:58,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:01:58,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 22:01:58,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:01:58,052 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-08-18 22:01:58,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:01:58,557 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-08-18 22:01:58,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 22:01:58,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-08-18 22:01:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:01:58,560 INFO L225 Difference]: With dead ends: 42 [2020-08-18 22:01:58,561 INFO L226 Difference]: Without dead ends: 36 [2020-08-18 22:01:58,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2020-08-18 22:01:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-08-18 22:01:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2020-08-18 22:01:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-18 22:01:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-18 22:01:58,571 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 26 [2020-08-18 22:01:58,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:01:58,571 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-18 22:01:58,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 22:01:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-18 22:01:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 22:01:58,573 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:01:58,573 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] [2020-08-18 22:01:58,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:01:58,574 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:01:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:01:58,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1255066423, now seen corresponding path program 1 times [2020-08-18 22:01:58,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:01:58,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411598963] [2020-08-18 22:01:58,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:01:58,591 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-18 22:01:58,592 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-18 22:01:58,592 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 22:01:58,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:01:58,613 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-18 22:01:58,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:01:58 BoogieIcfgContainer [2020-08-18 22:01:58,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:01:58,617 INFO L168 Benchmark]: Toolchain (without parser) took 2536.21 ms. Allocated memory was 137.9 MB in the beginning and 230.7 MB in the end (delta: 92.8 MB). Free memory was 100.9 MB in the beginning and 139.9 MB in the end (delta: -39.0 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2020-08-18 22:01:58,618 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 22:01:58,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.17 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:01:58,620 INFO L168 Benchmark]: Boogie Preprocessor took 129.21 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 90.3 MB in the beginning and 178.1 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-08-18 22:01:58,621 INFO L168 Benchmark]: RCFGBuilder took 410.07 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 160.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-08-18 22:01:58,622 INFO L168 Benchmark]: TraceAbstraction took 1706.84 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 160.2 MB in the beginning and 139.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2020-08-18 22:01:58,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.17 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.21 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 90.3 MB in the beginning and 178.1 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.07 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 160.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1706.84 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 160.2 MB in the beginning and 139.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible 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] = 1 [L30] i=0 [L30] COND TRUE i