/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/sina2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:30:13,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:30:13,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:30:13,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:30:13,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:30:13,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:30:13,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:30:13,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:30:13,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:30:13,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:30:13,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:30:13,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:30:13,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:30:13,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:30:13,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:30:13,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:30:13,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:30:13,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:30:13,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:30:13,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:30:13,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:30:13,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:30:13,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:30:13,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:30:13,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:30:13,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:30:13,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:30:13,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:30:13,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:30:13,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:30:13,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:30:13,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:30:13,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:30:13,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:30:13,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:30:13,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:30:13,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:30:13,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:30:13,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:30:13,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:30:13,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:30:13,499 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 04:30:13,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:30:13,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:30:13,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:30:13,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:30:13,547 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:30:13,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:30:13,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:30:13,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:30:13,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:30:13,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:30:13,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:30:13,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:30:13,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:30:13,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:30:13,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:30:13,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:30:13,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:30:13,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:30:13,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:30:13,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:30:13,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:30:13,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:30:13,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:30:13,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:30:13,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:30:13,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:30:13,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:30:13,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:30:13,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:30:13,554 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 04:30:13,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:30:13,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:30:13,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:30:13,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:30:13,887 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:30:13,888 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina2f.c [2020-08-19 04:30:13,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c28a5fe8/d8a391508c2f457fa7247bdaf8cb620b/FLAG77fcefb8d [2020-08-19 04:30:14,367 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:30:14,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina2f.c [2020-08-19 04:30:14,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c28a5fe8/d8a391508c2f457fa7247bdaf8cb620b/FLAG77fcefb8d [2020-08-19 04:30:14,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c28a5fe8/d8a391508c2f457fa7247bdaf8cb620b [2020-08-19 04:30:14,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:30:14,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:30:14,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:14,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:30:14,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:30:14,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:14" (1/1) ... [2020-08-19 04:30:14,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dceca50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:14, skipping insertion in model container [2020-08-19 04:30:14,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:14" (1/1) ... [2020-08-19 04:30:14,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:30:14,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:30:15,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:15,027 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:30:15,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:15,061 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:30:15,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15 WrapperNode [2020-08-19 04:30:15,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:15,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:30:15,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:30:15,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:30:15,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:30:15,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:30:15,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:30:15,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:30:15,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (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 04:30:15,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:30:15,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:30:15,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:30:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:30:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:30:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:30:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:30:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:30:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:30:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:30:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:30:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:30:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:30:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:30:15,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:30:15,601 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 04:30:15,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:15 BoogieIcfgContainer [2020-08-19 04:30:15,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:30:15,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:30:15,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:30:15,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:30:15,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:30:14" (1/3) ... [2020-08-19 04:30:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5910e3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:15, skipping insertion in model container [2020-08-19 04:30:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15" (2/3) ... [2020-08-19 04:30:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5910e3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:15, skipping insertion in model container [2020-08-19 04:30:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:15" (3/3) ... [2020-08-19 04:30:15,613 INFO L109 eAbstractionObserver]: Analyzing ICFG sina2f.c [2020-08-19 04:30:15,623 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:30:15,629 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:30:15,643 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:30:15,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:30:15,665 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:30:15,665 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:30:15,665 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:30:15,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:30:15,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:30:15,666 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:30:15,666 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:30:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-08-19 04:30:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 04:30:15,689 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:15,689 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 04:30:15,690 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:15,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-08-19 04:30:15,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:15,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655413867] [2020-08-19 04:30:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:15,891 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 04:30:15,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655413867] [2020-08-19 04:30:15,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:15,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 04:30:15,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436695969] [2020-08-19 04:30:15,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 04:30:15,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:15,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 04:30:15,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 04:30:15,916 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-08-19 04:30:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:16,036 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-08-19 04:30:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 04:30:16,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-08-19 04:30:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:16,046 INFO L225 Difference]: With dead ends: 64 [2020-08-19 04:30:16,047 INFO L226 Difference]: Without dead ends: 32 [2020-08-19 04:30:16,050 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 04:30:16,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-19 04:30:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-08-19 04:30:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-19 04:30:16,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-08-19 04:30:16,090 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-08-19 04:30:16,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:16,090 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-08-19 04:30:16,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 04:30:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-08-19 04:30:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 04:30:16,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:16,092 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 04:30:16,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:30:16,092 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:16,093 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-08-19 04:30:16,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:16,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396182626] [2020-08-19 04:30:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,221 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 04:30:16,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396182626] [2020-08-19 04:30:16,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:16,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:30:16,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912328770] [2020-08-19 04:30:16,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:30:16,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:16,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:30:16,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:30:16,225 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-08-19 04:30:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:16,381 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-08-19 04:30:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:30:16,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-08-19 04:30:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:16,384 INFO L225 Difference]: With dead ends: 59 [2020-08-19 04:30:16,385 INFO L226 Difference]: Without dead ends: 42 [2020-08-19 04:30:16,386 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 04:30:16,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-08-19 04:30:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-08-19 04:30:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-19 04:30:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-08-19 04:30:16,400 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-08-19 04:30:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:16,401 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-08-19 04:30:16,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:30:16,401 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-08-19 04:30:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 04:30:16,402 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:16,402 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] [2020-08-19 04:30:16,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:30:16,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:16,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:16,403 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-08-19 04:30:16,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:16,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079159524] [2020-08-19 04:30:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 04:30:16,455 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 04:30:16,455 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 04:30:16,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:30:16,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:30:16 BoogieIcfgContainer [2020-08-19 04:30:16,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:30:16,482 INFO L168 Benchmark]: Toolchain (without parser) took 1700.47 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 103.2 MB in the beginning and 102.3 MB in the end (delta: 894.6 kB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,484 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.53 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 92.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,486 INFO L168 Benchmark]: Boogie Preprocessor took 124.65 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,487 INFO L168 Benchmark]: RCFGBuilder took 417.59 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 161.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,489 INFO L168 Benchmark]: TraceAbstraction took 870.10 ms. Allocated memory is still 202.4 MB. Free memory was 161.0 MB in the beginning and 102.3 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:16,497 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.53 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 92.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.65 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.59 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 161.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 870.10 ms. Allocated memory is still 202.4 MB. Free memory was 161.0 MB in the beginning and 102.3 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 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] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i