/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/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:30:14,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:30:14,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:30:14,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:30:14,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:30:14,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:30:14,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:30:14,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:30:14,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:30:14,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:30:14,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:30:14,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:30:14,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:30:14,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:30:14,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:30:14,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:30:14,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:30:14,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:30:14,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:30:14,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:30:14,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:30:14,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:30:14,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:30:14,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:30:14,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:30:14,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:30:14,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:30:14,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:30:14,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:30:14,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:30:14,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:30:14,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:30:14,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:30:14,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:30:14,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:30:14,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:30:14,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:30:14,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:30:14,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:30:14,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:30:14,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:30:14,178 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 04:30:14,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:30:14,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:30:14,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:30:14,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:30:14,228 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:30:14,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:30:14,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:30:14,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:30:14,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:30:14,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:30:14,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:30:14,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:30:14,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:30:14,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:30:14,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:30:14,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:30:14,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:30:14,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:30:14,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:30:14,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:30:14,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:30:14,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:30:14,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:30:14,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:30:14,236 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 04:30:14,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:30:14,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:30:14,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:30:14,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:30:14,557 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:30:14,558 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-08-19 04:30:14,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42e9c9f8e/2757517632f144f9a52bcda1f4cdd5ae/FLAG5b6a3a6d1 [2020-08-19 04:30:15,130 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:30:15,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina3f.c [2020-08-19 04:30:15,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42e9c9f8e/2757517632f144f9a52bcda1f4cdd5ae/FLAG5b6a3a6d1 [2020-08-19 04:30:15,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42e9c9f8e/2757517632f144f9a52bcda1f4cdd5ae [2020-08-19 04:30:15,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:30:15,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:30:15,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:15,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:30:15,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:30:15,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f159ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15, skipping insertion in model container [2020-08-19 04:30:15,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:15" (1/1) ... [2020-08-19 04:30:15,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:30:15,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:30:15,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:15,797 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:30:15,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:15,933 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:30:15,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:15 WrapperNode [2020-08-19 04:30:15,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:15,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:30:15,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:30:15,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:30:15,948 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 04:30:15,948 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 04:30:15,966 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 04:30:15,967 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 04:30:15,975 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 04:30:15,981 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 04:30:15,983 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 04:30:15,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:30:15,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:30:15,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:30:15,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:30:15,987 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 04:30:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:30:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:30:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:30:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:30:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:30:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:30:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:30:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:30:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:30:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:30:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:30:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:30:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:30:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:30:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:30:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:30:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:30:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:30:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:30:16,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:30:16,360 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 04:30:16,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:16 BoogieIcfgContainer [2020-08-19 04:30:16,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:30:16,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:30:16,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:30:16,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:30:16,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:30:15" (1/3) ... [2020-08-19 04:30:16,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c021303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:16, skipping insertion in model container [2020-08-19 04:30:16,370 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 04:30:16,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c021303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:16, skipping insertion in model container [2020-08-19 04:30:16,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:16" (3/3) ... [2020-08-19 04:30:16,372 INFO L109 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-08-19 04:30:16,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:30:16,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:30:16,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:30:16,429 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:30:16,430 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:30:16,430 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:30:16,430 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:30:16,430 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:30:16,430 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:30:16,431 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:30:16,431 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:30:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-19 04:30:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 04:30:16,457 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:16,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:16,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:16,463 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-08-19 04:30:16,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:16,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552875801] [2020-08-19 04:30:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:16,670 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 04:30:16,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552875801] [2020-08-19 04:30:16,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:16,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 04:30:16,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290948156] [2020-08-19 04:30:16,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 04:30:16,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 04:30:16,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 04:30:16,698 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-08-19 04:30:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:16,830 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-08-19 04:30:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 04:30:16,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-08-19 04:30:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:16,842 INFO L225 Difference]: With dead ends: 70 [2020-08-19 04:30:16,842 INFO L226 Difference]: Without dead ends: 35 [2020-08-19 04:30:16,846 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 04:30:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-08-19 04:30:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-08-19 04:30:16,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-19 04:30:16,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-08-19 04:30:16,890 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-08-19 04:30:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:16,891 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-08-19 04:30:16,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 04:30:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-08-19 04:30:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 04:30:16,892 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:16,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:16,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:30:16,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:16,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-08-19 04:30:16,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:16,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363171490] [2020-08-19 04:30:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:17,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:17,100 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 04:30:17,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363171490] [2020-08-19 04:30:17,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:17,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:30:17,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149700784] [2020-08-19 04:30:17,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:30:17,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:17,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:30:17,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:30:17,107 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-08-19 04:30:17,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:17,348 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-08-19 04:30:17,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:30:17,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-08-19 04:30:17,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:17,352 INFO L225 Difference]: With dead ends: 67 [2020-08-19 04:30:17,353 INFO L226 Difference]: Without dead ends: 47 [2020-08-19 04:30:17,354 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 04:30:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-08-19 04:30:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-08-19 04:30:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-19 04:30:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-08-19 04:30:17,370 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-08-19 04:30:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:17,371 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-08-19 04:30:17,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:30:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-08-19 04:30:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-19 04:30:17,372 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:17,373 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, 1, 1, 1] [2020-08-19 04:30:17,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:30:17,373 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:17,374 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-08-19 04:30:17,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:17,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245246977] [2020-08-19 04:30:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 04:30:17,438 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 04:30:17,438 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 04:30:17,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:30:17,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:30:17 BoogieIcfgContainer [2020-08-19 04:30:17,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:30:17,469 INFO L168 Benchmark]: Toolchain (without parser) took 1936.54 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.4 MB in the beginning and 99.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,470 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.11 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 183.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,477 INFO L168 Benchmark]: Boogie Preprocessor took 49.42 ms. Allocated memory is still 205.0 MB. Free memory was 183.4 MB in the beginning and 181.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,478 INFO L168 Benchmark]: RCFGBuilder took 378.07 ms. Allocated memory is still 205.0 MB. Free memory was 181.2 MB in the beginning and 162.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,479 INFO L168 Benchmark]: TraceAbstraction took 1100.78 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 99.2 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:17,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 402.11 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 183.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.42 ms. Allocated memory is still 205.0 MB. Free memory was 183.4 MB in the beginning and 181.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.07 ms. Allocated memory is still 205.0 MB. Free memory was 181.2 MB in the beginning and 162.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1100.78 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 99.2 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 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); [L28] int *b = malloc(sizeof(int)*N); [L30] sum[0] = 1 [L31] i=0 [L31] COND TRUE i