/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/brs2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:29:48,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:29:48,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:29:48,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:29:48,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:29:48,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:29:48,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:29:48,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:29:48,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:29:48,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:29:48,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:29:48,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:29:48,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:29:48,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:29:48,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:29:48,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:29:48,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:29:48,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:29:48,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:29:48,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:29:49,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:29:49,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:29:49,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:29:49,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:29:49,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:29:49,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:29:49,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:29:49,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:29:49,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:29:49,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:29:49,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:29:49,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:29:49,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:29:49,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:29:49,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:29:49,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:29:49,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:29:49,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:29:49,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:29:49,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:29:49,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:29:49,034 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 [2020-08-19 04:29:49,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:29:49,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:29:49,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:29:49,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:29:49,058 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:29:49,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:29:49,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:29:49,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:29:49,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:29:49,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:29:49,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:29:49,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:29:49,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:29:49,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:29:49,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:29:49,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:29:49,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:29:49,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:29:49,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:29:49,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:29:49,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:29:49,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:29:49,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:29:49,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:29:49,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:29:49,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:29:49,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:29:49,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:29:49,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:29:49,063 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=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:29:49,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:29:49,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:29:49,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:29:49,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:29:49,404 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:29:49,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs2f.c [2020-08-19 04:29:49,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61d5dc8a/2cffedf3a2784ca0b2feafcb1c6a958c/FLAG1b2e62220 [2020-08-19 04:29:49,933 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:29:49,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs2f.c [2020-08-19 04:29:49,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61d5dc8a/2cffedf3a2784ca0b2feafcb1c6a958c/FLAG1b2e62220 [2020-08-19 04:29:50,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61d5dc8a/2cffedf3a2784ca0b2feafcb1c6a958c [2020-08-19 04:29:50,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:29:50,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:29:50,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:29:50,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:29:50,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:29:50,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b30b002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50, skipping insertion in model container [2020-08-19 04:29:50,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:29:50,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:29:50,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:29:50,549 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:29:50,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:29:50,589 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:29:50,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50 WrapperNode [2020-08-19 04:29:50,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:29:50,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:29:50,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:29:50,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:29:50,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (1/1) ... [2020-08-19 04:29:50,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:29:50,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:29:50,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:29:50,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:29:50,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (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 [2020-08-19 04:29:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:29:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:29:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:29:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:29:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:29:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:29:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:29:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:29:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:29:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:29:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:29:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:29:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:29:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:29:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:29:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:29:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:29:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:29:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:29:51,124 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:29:51,125 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-19 04:29:51,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:29:51 BoogieIcfgContainer [2020-08-19 04:29:51,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:29:51,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:29:51,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:29:51,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:29:51,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:29:50" (1/3) ... [2020-08-19 04:29:51,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9d0a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:29:51, skipping insertion in model container [2020-08-19 04:29:51,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:29:50" (2/3) ... [2020-08-19 04:29:51,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9d0a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:29:51, skipping insertion in model container [2020-08-19 04:29:51,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:29:51" (3/3) ... [2020-08-19 04:29:51,138 INFO L109 eAbstractionObserver]: Analyzing ICFG brs2f.c [2020-08-19 04:29:51,149 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:29:51,156 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:29:51,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:29:51,197 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:29:51,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:29:51,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:29:51,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:29:51,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:29:51,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:29:51,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:29:51,198 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:29:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-08-19 04:29:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 04:29:51,222 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:51,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:29:51,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:51,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1824292310, now seen corresponding path program 1 times [2020-08-19 04:29:51,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:51,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562647940] [2020-08-19 04:29:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:29:51,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562647940] [2020-08-19 04:29:51,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:29:51,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 04:29:51,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749514268] [2020-08-19 04:29:51,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 04:29:51,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:51,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 04:29:51,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 04:29:51,467 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-08-19 04:29:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:51,580 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-08-19 04:29:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 04:29:51,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-08-19 04:29:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:51,590 INFO L225 Difference]: With dead ends: 56 [2020-08-19 04:29:51,590 INFO L226 Difference]: Without dead ends: 26 [2020-08-19 04:29:51,594 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 [2020-08-19 04:29:51,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-08-19 04:29:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-08-19 04:29:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-08-19 04:29:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-08-19 04:29:51,630 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 21 [2020-08-19 04:29:51,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:51,631 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-08-19 04:29:51,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 04:29:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-08-19 04:29:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 04:29:51,632 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:51,632 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] [2020-08-19 04:29:51,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:29:51,633 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:51,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1767537087, now seen corresponding path program 1 times [2020-08-19 04:29:51,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:51,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865686313] [2020-08-19 04:29:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:29:51,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865686313] [2020-08-19 04:29:51,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:29:51,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:29:51,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118813105] [2020-08-19 04:29:51,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:29:51,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:51,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:29:51,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:29:51,762 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2020-08-19 04:29:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:51,886 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-08-19 04:29:51,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:29:51,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-19 04:29:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:51,888 INFO L225 Difference]: With dead ends: 45 [2020-08-19 04:29:51,888 INFO L226 Difference]: Without dead ends: 32 [2020-08-19 04:29:51,889 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 [2020-08-19 04:29:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-19 04:29:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-08-19 04:29:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-19 04:29:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-08-19 04:29:51,898 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2020-08-19 04:29:51,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:51,899 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-08-19 04:29:51,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:29:51,899 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-08-19 04:29:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-19 04:29:51,900 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:51,900 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] [2020-08-19 04:29:51,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:29:51,901 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:51,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash -395878216, now seen corresponding path program 1 times [2020-08-19 04:29:51,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:51,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192055660] [2020-08-19 04:29:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 04:29:52,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192055660] [2020-08-19 04:29:52,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:29:52,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 04:29:52,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483708391] [2020-08-19 04:29:52,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 04:29:52,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:52,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 04:29:52,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:29:52,110 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 8 states. [2020-08-19 04:29:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:52,348 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-08-19 04:29:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 04:29:52,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-08-19 04:29:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:52,350 INFO L225 Difference]: With dead ends: 39 [2020-08-19 04:29:52,350 INFO L226 Difference]: Without dead ends: 33 [2020-08-19 04:29:52,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:29:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-19 04:29:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-08-19 04:29:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-19 04:29:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-08-19 04:29:52,359 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 27 [2020-08-19 04:29:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:52,360 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-08-19 04:29:52,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 04:29:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-08-19 04:29:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 04:29:52,361 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:52,361 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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] [2020-08-19 04:29:52,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:29:52,362 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:52,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1239476407, now seen corresponding path program 1 times [2020-08-19 04:29:52,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:52,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144643769] [2020-08-19 04:29:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:29:52,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144643769] [2020-08-19 04:29:52,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:29:52,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 04:29:52,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105633509] [2020-08-19 04:29:52,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 04:29:52,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:52,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 04:29:52,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:29:52,474 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 8 states. [2020-08-19 04:29:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:52,641 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-08-19 04:29:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 04:29:52,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-08-19 04:29:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:52,643 INFO L225 Difference]: With dead ends: 54 [2020-08-19 04:29:52,643 INFO L226 Difference]: Without dead ends: 38 [2020-08-19 04:29:52,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:29:52,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-08-19 04:29:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-08-19 04:29:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-08-19 04:29:52,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-08-19 04:29:52,651 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 30 [2020-08-19 04:29:52,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:52,652 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-08-19 04:29:52,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 04:29:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-08-19 04:29:52,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-19 04:29:52,653 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:52,653 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:29:52,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:29:52,654 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:52,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1781264291, now seen corresponding path program 2 times [2020-08-19 04:29:52,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:52,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007814409] [2020-08-19 04:29:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-19 04:29:52,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007814409] [2020-08-19 04:29:52,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:29:52,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-19 04:29:52,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627925378] [2020-08-19 04:29:52,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:29:52,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:52,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:29:52,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:29:52,773 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 5 states. [2020-08-19 04:29:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:52,895 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-08-19 04:29:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 04:29:52,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-08-19 04:29:52,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:52,896 INFO L225 Difference]: With dead ends: 55 [2020-08-19 04:29:52,897 INFO L226 Difference]: Without dead ends: 38 [2020-08-19 04:29:52,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:29:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-08-19 04:29:52,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-08-19 04:29:52,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-19 04:29:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-08-19 04:29:52,904 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 33 [2020-08-19 04:29:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:52,905 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-08-19 04:29:52,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:29:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-08-19 04:29:52,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-19 04:29:52,906 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:52,907 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2020-08-19 04:29:52,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:29:52,907 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:52,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:52,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1492634651, now seen corresponding path program 1 times [2020-08-19 04:29:52,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:52,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300141260] [2020-08-19 04:29:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:29:53,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300141260] [2020-08-19 04:29:53,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:29:53,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-19 04:29:53,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561174290] [2020-08-19 04:29:53,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-19 04:29:53,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:53,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-19 04:29:53,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-19 04:29:53,198 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 14 states. [2020-08-19 04:29:53,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:53,743 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-08-19 04:29:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 04:29:53,743 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2020-08-19 04:29:53,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:53,744 INFO L225 Difference]: With dead ends: 46 [2020-08-19 04:29:53,745 INFO L226 Difference]: Without dead ends: 40 [2020-08-19 04:29:53,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2020-08-19 04:29:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-19 04:29:53,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-08-19 04:29:53,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-19 04:29:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-08-19 04:29:53,759 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 33 [2020-08-19 04:29:53,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:53,760 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-08-19 04:29:53,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-19 04:29:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-08-19 04:29:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-08-19 04:29:53,762 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:53,762 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:29:53,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:29:53,762 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:53,763 INFO L82 PathProgramCache]: Analyzing trace with hash -2145280396, now seen corresponding path program 2 times [2020-08-19 04:29:53,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:53,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683828967] [2020-08-19 04:29:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:29:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:29:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:29:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:29:53,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683828967] [2020-08-19 04:29:53,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:29:53,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 04:29:53,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142444502] [2020-08-19 04:29:53,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 04:29:53,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:29:53,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 04:29:53,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:29:53,941 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 10 states. [2020-08-19 04:29:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:29:54,116 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2020-08-19 04:29:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 04:29:54,117 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-08-19 04:29:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:29:54,118 INFO L225 Difference]: With dead ends: 66 [2020-08-19 04:29:54,118 INFO L226 Difference]: Without dead ends: 44 [2020-08-19 04:29:54,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-08-19 04:29:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-19 04:29:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-08-19 04:29:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-08-19 04:29:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-08-19 04:29:54,126 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 36 [2020-08-19 04:29:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:29:54,126 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-08-19 04:29:54,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 04:29:54,126 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-08-19 04:29:54,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-19 04:29:54,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:29:54,128 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:29:54,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:29:54,128 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:29:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:29:54,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1680039082, now seen corresponding path program 3 times [2020-08-19 04:29:54,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:29:54,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401528654] [2020-08-19 04:29:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:29:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 04:29:54,158 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 04:29:54,158 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 04:29:54,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:29:54,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:29:54 BoogieIcfgContainer [2020-08-19 04:29:54,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:29:54,183 INFO L168 Benchmark]: Toolchain (without parser) took 3884.64 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 103.6 MB in the beginning and 126.1 MB in the end (delta: -22.5 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-08-19 04:29:54,184 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 04:29:54,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.22 ms. Allocated memory is still 140.0 MB. Free memory was 103.4 MB in the beginning and 92.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-19 04:29:54,186 INFO L168 Benchmark]: Boogie Preprocessor took 143.31 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.6 MB in the beginning and 179.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-19 04:29:54,187 INFO L168 Benchmark]: RCFGBuilder took 394.40 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 162.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-08-19 04:29:54,188 INFO L168 Benchmark]: TraceAbstraction took 3050.54 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 162.1 MB in the beginning and 126.1 MB in the end (delta: 36.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-08-19 04:29:54,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.22 ms. Allocated memory is still 140.0 MB. Free memory was 103.4 MB in the beginning and 92.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.31 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.6 MB in the beginning and 179.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 394.40 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 162.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3050.54 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 162.1 MB in the beginning and 126.1 MB in the end (delta: 36.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i