/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=0.3 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:18:20,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:18:20,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:18:20,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:18:20,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:18:20,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:18:20,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:18:20,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:18:20,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:18:20,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:18:20,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:18:20,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:18:20,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:18:20,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:18:20,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:18:20,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:18:20,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:18:20,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:18:20,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:18:20,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:18:20,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:18:20,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:18:20,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:18:20,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:18:20,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:18:20,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:18:20,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:18:20,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:18:20,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:18:20,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:18:20,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:18:20,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:18:20,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:18:20,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:18:20,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:18:20,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:18:20,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:18:20,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:18:20,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:18:20,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:18:20,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:18:20,907 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 05:18:20,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:18:20,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:18:20,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:18:20,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:18:20,931 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:18:20,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:18:20,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:18:20,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:18:20,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:18:20,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:18:20,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:18:20,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:18:20,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:18:20,932 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:18:20,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:18:20,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:18:20,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:18:20,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:18:20,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:18:20,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:18:20,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:18:20,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:18:20,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:18:20,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:18:20,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:18:20,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:18:20,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:18:20,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:18:20,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:18:20,935 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=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:18:21,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:18:21,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:18:21,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:18:21,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:18:21,268 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:18:21,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-08-19 05:18:21,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e8c1a310/5f5a7490f8f54e778d497a4130714faf/FLAGc2ecae42c [2020-08-19 05:18:21,808 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:18:21,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c [2020-08-19 05:18:21,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e8c1a310/5f5a7490f8f54e778d497a4130714faf/FLAGc2ecae42c [2020-08-19 05:18:22,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e8c1a310/5f5a7490f8f54e778d497a4130714faf [2020-08-19 05:18:22,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:18:22,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:18:22,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:18:22,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:18:22,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:18:22,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326565d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22, skipping insertion in model container [2020-08-19 05:18:22,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:18:22,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:18:22,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:18:22,426 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:18:22,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:18:22,467 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:18:22,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22 WrapperNode [2020-08-19 05:18:22,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:18:22,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:18:22,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:18:22,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:18:22,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (1/1) ... [2020-08-19 05:18:22,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:18:22,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:18:22,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:18:22,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:18:22,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (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 05:18:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:18:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:18:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 05:18:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 05:18:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:18:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:18:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 05:18:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 05:18:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:18:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:18:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:18:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:18:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:18:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:18:22,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:18:22,971 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 05:18:22,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:18:22 BoogieIcfgContainer [2020-08-19 05:18:22,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:18:22,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:18:22,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:18:22,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:18:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:18:22" (1/3) ... [2020-08-19 05:18:22,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c083e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:18:22, skipping insertion in model container [2020-08-19 05:18:22,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:18:22" (2/3) ... [2020-08-19 05:18:22,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c083e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:18:22, skipping insertion in model container [2020-08-19 05:18:22,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:18:22" (3/3) ... [2020-08-19 05:18:22,986 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-08-19 05:18:23,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:18:23,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:18:23,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:18:23,059 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:18:23,059 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:18:23,059 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:18:23,059 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:18:23,060 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:18:23,060 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:18:23,060 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:18:23,061 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:18:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-08-19 05:18:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 05:18:23,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:18:23,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:18:23,093 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:18:23,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:18:23,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-08-19 05:18:23,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:18:23,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288542245] [2020-08-19 05:18:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:18:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:18:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 05:18:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,354 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 05:18:23,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288542245] [2020-08-19 05:18:23,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:18:23,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 05:18:23,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214081371] [2020-08-19 05:18:23,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 05:18:23,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:18:23,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 05:18:23,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 05:18:23,383 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-08-19 05:18:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:18:23,513 INFO L93 Difference]: Finished difference Result 66 states and 87 transitions. [2020-08-19 05:18:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 05:18:23,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-08-19 05:18:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:18:23,526 INFO L225 Difference]: With dead ends: 66 [2020-08-19 05:18:23,526 INFO L226 Difference]: Without dead ends: 33 [2020-08-19 05:18:23,531 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 05:18:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-19 05:18:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-19 05:18:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-19 05:18:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-19 05:18:23,577 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-08-19 05:18:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:18:23,578 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-19 05:18:23,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 05:18:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-19 05:18:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 05:18:23,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:18:23,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:18:23,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:18:23,581 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:18:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:18:23,581 INFO L82 PathProgramCache]: Analyzing trace with hash 34447140, now seen corresponding path program 1 times [2020-08-19 05:18:23,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:18:23,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319169485] [2020-08-19 05:18:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:18:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:18:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 05:18:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:23,713 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 05:18:23,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319169485] [2020-08-19 05:18:23,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:18:23,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:18:23,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725901664] [2020-08-19 05:18:23,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:18:23,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:18:23,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:18:23,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:18:23,718 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-19 05:18:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:18:23,888 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-08-19 05:18:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:18:23,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-08-19 05:18:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:18:23,892 INFO L225 Difference]: With dead ends: 62 [2020-08-19 05:18:23,892 INFO L226 Difference]: Without dead ends: 44 [2020-08-19 05:18:23,894 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 05:18:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-19 05:18:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-08-19 05:18:23,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-19 05:18:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-08-19 05:18:23,909 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-08-19 05:18:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:18:23,910 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-08-19 05:18:23,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:18:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-08-19 05:18:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-19 05:18:23,911 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:18:23,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:18:23,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:18:23,912 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:18:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:18:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-08-19 05:18:23,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:18:23,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977787300] [2020-08-19 05:18:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:18:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:18:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:24,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 05:18:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:18:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:18:24,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977787300] [2020-08-19 05:18:24,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:18:24,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 05:18:24,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585292449] [2020-08-19 05:18:24,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:18:24,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:18:24,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:18:24,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:18:24,319 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2020-08-19 05:18:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:18:24,731 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-08-19 05:18:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 05:18:24,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-08-19 05:18:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:18:24,735 INFO L225 Difference]: With dead ends: 59 [2020-08-19 05:18:24,735 INFO L226 Difference]: Without dead ends: 45 [2020-08-19 05:18:24,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:18:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-08-19 05:18:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-08-19 05:18:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-19 05:18:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2020-08-19 05:18:24,746 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 31 [2020-08-19 05:18:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:18:24,746 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2020-08-19 05:18:24,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 05:18:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-08-19 05:18:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-19 05:18:24,750 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:18:24,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:18:24,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:18:24,751 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:18:24,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:18:24,752 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-08-19 05:18:24,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:18:24,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119572807] [2020-08-19 05:18:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:18:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 05:18:24,791 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 05:18:24,791 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 05:18:24,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:18:24,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 05:18:24 BoogieIcfgContainer [2020-08-19 05:18:24,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 05:18:24,818 INFO L168 Benchmark]: Toolchain (without parser) took 2626.02 ms. Allocated memory was 141.6 MB in the beginning and 234.4 MB in the end (delta: 92.8 MB). Free memory was 104.7 MB in the beginning and 125.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,819 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.03 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 93.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,821 INFO L168 Benchmark]: Boogie Preprocessor took 151.45 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,822 INFO L168 Benchmark]: RCFGBuilder took 357.68 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 162.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,823 INFO L168 Benchmark]: TraceAbstraction took 1835.57 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 162.3 MB in the beginning and 125.9 MB in the end (delta: 36.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2020-08-19 05:18:24,827 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 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.03 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 93.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.45 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.68 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 162.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1835.57 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 162.3 MB in the beginning and 125.9 MB in the end (delta: 36.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i