/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/brs5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:25:39,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:25:39,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:25:39,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:25:39,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:25:39,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:25:39,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:25:39,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:25:39,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:25:39,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:25:39,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:25:39,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:25:39,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:25:39,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:25:39,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:25:39,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:25:39,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:25:39,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:25:39,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:25:39,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:25:39,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:25:39,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:25:39,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:25:39,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:25:39,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:25:39,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:25:39,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:25:39,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:25:39,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:25:39,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:25:39,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:25:39,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:25:39,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:25:39,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:25:39,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:25:39,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:25:39,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:25:39,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:25:39,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:25:39,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:25:39,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:25:39,637 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 [2020-09-25 03:25:39,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:25:39,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:25:39,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:25:39,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:25:39,684 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:25:39,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:25:39,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:25:39,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:25:39,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:25:39,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:25:39,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:25:39,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:25:39,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:25:39,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:25:39,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:25:39,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:25:39,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:25:39,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:25:39,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:25:39,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:25:39,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:25:39,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:25:39,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:25:39,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:25:39,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:25:39,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:25:39,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:25:39,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:25:39,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:25:39,691 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:25:40,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:25:40,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:25:40,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:25:40,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:25:40,287 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:25:40,288 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs5f.c [2020-09-25 03:25:40,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/390474776/4a7ca86f0f5e4b3ab72955d2f8e37bef/FLAG5f56c7204 [2020-09-25 03:25:40,902 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:25:40,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs5f.c [2020-09-25 03:25:40,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/390474776/4a7ca86f0f5e4b3ab72955d2f8e37bef/FLAG5f56c7204 [2020-09-25 03:25:41,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/390474776/4a7ca86f0f5e4b3ab72955d2f8e37bef [2020-09-25 03:25:41,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:25:41,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:25:41,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:25:41,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:25:41,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:25:41,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e62aa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41, skipping insertion in model container [2020-09-25 03:25:41,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:25:41,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:25:41,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:25:41,634 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:25:41,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:25:41,685 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:25:41,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41 WrapperNode [2020-09-25 03:25:41,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:25:41,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:25:41,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:25:41,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:25:41,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (1/1) ... [2020-09-25 03:25:41,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:25:41,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:25:41,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:25:41,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:25:41,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (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 [2020-09-25 03:25:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:25:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:25:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:25:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:25:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:25:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:25:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:25:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:25:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:25:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:25:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:25:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:25:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:25:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:25:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:25:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:25:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:25:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:25:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:25:42,266 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:25:42,267 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 03:25:42,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:25:42 BoogieIcfgContainer [2020-09-25 03:25:42,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:25:42,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:25:42,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:25:42,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:25:42,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:25:41" (1/3) ... [2020-09-25 03:25:42,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8c5f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:25:42, skipping insertion in model container [2020-09-25 03:25:42,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:41" (2/3) ... [2020-09-25 03:25:42,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8c5f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:25:42, skipping insertion in model container [2020-09-25 03:25:42,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:25:42" (3/3) ... [2020-09-25 03:25:42,282 INFO L109 eAbstractionObserver]: Analyzing ICFG brs5f.c [2020-09-25 03:25:42,292 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:25:42,302 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:25:42,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:25:42,351 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:25:42,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:25:42,351 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:25:42,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:25:42,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:25:42,351 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:25:42,351 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:25:42,351 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:25:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-09-25 03:25:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 03:25:42,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:25:42,382 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] [2020-09-25 03:25:42,383 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:25:42,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:25:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash 221259408, now seen corresponding path program 1 times [2020-09-25 03:25:42,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:25:42,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398981498] [2020-09-25 03:25:42,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:25:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:42,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:42,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:42,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:25:42,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:25:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-25 03:25:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:25:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:25:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:25:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:25:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:25:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:43,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:43,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:43,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:25:43,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:43,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:25:43,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:43,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:25:43,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:25:43,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 03:25:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:43,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:43,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:43,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:25:43,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:43,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:25:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:25:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:25:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:25:43,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398981498] [2020-09-25 03:25:43,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:25:43,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:25:43,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745118782] [2020-09-25 03:25:43,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:25:43,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:25:43,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:25:43,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:25:43,166 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 5 states. [2020-09-25 03:25:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:25:43,441 INFO L93 Difference]: Finished difference Result 107 states and 125 transitions. [2020-09-25 03:25:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:25:43,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 03:25:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:25:43,456 INFO L225 Difference]: With dead ends: 107 [2020-09-25 03:25:43,456 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 03:25:43,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:25:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 03:25:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-25 03:25:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 03:25:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2020-09-25 03:25:43,517 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 30 [2020-09-25 03:25:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:25:43,517 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2020-09-25 03:25:43,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:25:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2020-09-25 03:25:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 03:25:43,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:25:43,520 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:25:43,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:25:43,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:25:43,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:25:43,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1707000309, now seen corresponding path program 1 times [2020-09-25 03:25:43,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:25:43,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535586643] [2020-09-25 03:25:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:25:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:25:43,557 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:25:43,558 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:25:43,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:25:43,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:25:43 BoogieIcfgContainer [2020-09-25 03:25:43,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:25:43,594 INFO L168 Benchmark]: Toolchain (without parser) took 2340.40 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 94.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,596 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.03 ms. Allocated memory is still 147.3 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,598 INFO L168 Benchmark]: Boogie Preprocessor took 143.14 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.4 MB in the beginning and 181.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,599 INFO L168 Benchmark]: RCFGBuilder took 441.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 162.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,600 INFO L168 Benchmark]: TraceAbstraction took 1317.18 ms. Allocated memory is still 203.9 MB. Free memory was 162.4 MB in the beginning and 94.0 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:43,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 430.03 ms. Allocated memory is still 147.3 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.14 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.4 MB in the beginning and 181.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 162.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1317.18 ms. Allocated memory is still 203.9 MB. Free memory was 162.4 MB in the beginning and 94.0 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i