/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=NARROWEST --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/s12iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:18:28,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:18:28,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:18:28,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:18:28,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:18:28,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:18:28,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:18:28,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:18:28,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:18:28,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:18:28,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:18:28,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:18:28,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:18:28,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:18:28,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:18:28,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:18:28,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:18:28,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:18:28,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:18:28,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:18:28,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:18:28,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:18:28,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:18:28,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:18:28,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:18:28,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:18:28,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:18:28,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:18:28,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:18:28,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:18:28,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:18:28,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:18:28,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:18:28,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:18:28,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:18:28,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:18:28,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:18:28,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:18:28,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:18:28,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:18:28,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:18:28,343 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 02:18:28,394 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:18:28,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:18:28,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:18:28,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:18:28,397 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:18:28,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:18:28,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:18:28,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:18:28,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:18:28,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:18:28,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:18:28,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:18:28,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:18:28,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:18:28,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:18:28,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:18:28,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:18:28,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:18:28,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:18:28,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:18:28,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:18:28,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:28,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:18:28,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:18:28,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:18:28,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:18:28,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:18:28,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:18:28,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:18:28,404 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:18:28,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:18:28,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:18:28,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:18:28,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:18:28,886 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:18:28,888 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s12iff.c [2020-09-25 02:18:28,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f9c46200/e9f8ea9d226d496faf4015c929d19ee0/FLAGdf9372443 [2020-09-25 02:18:29,541 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:18:29,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s12iff.c [2020-09-25 02:18:29,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f9c46200/e9f8ea9d226d496faf4015c929d19ee0/FLAGdf9372443 [2020-09-25 02:18:29,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f9c46200/e9f8ea9d226d496faf4015c929d19ee0 [2020-09-25 02:18:29,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:18:29,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:18:29,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:29,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:18:29,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:18:29,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:29" (1/1) ... [2020-09-25 02:18:29,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3ef8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:29, skipping insertion in model container [2020-09-25 02:18:29,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:29" (1/1) ... [2020-09-25 02:18:29,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:18:30,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:18:30,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:30,350 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:18:30,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:30,476 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:18:30,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30 WrapperNode [2020-09-25 02:18:30,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:30,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:18:30,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:18:30,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:18:30,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (1/1) ... [2020-09-25 02:18:30,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:18:30,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:18:30,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:18:30,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:18:30,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (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 02:18:30,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:18:30,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:18:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:18:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:18:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:18:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:18:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:18:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:18:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:18:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:18:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:18:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:18:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:18:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:18:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:18:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:18:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:18:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:18:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:30,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:30,971 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 02:18:30,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:30 BoogieIcfgContainer [2020-09-25 02:18:30,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:30,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:30,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:30,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:30,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:29" (1/3) ... [2020-09-25 02:18:30,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3107cc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:30, skipping insertion in model container [2020-09-25 02:18:30,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:30" (2/3) ... [2020-09-25 02:18:30,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3107cc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:30, skipping insertion in model container [2020-09-25 02:18:30,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:30" (3/3) ... [2020-09-25 02:18:30,988 INFO L109 eAbstractionObserver]: Analyzing ICFG s12iff.c [2020-09-25 02:18:31,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:31,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:31,034 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:31,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:31,062 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:31,062 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:31,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:31,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:31,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:31,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:31,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:31,086 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-25 02:18:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 02:18:31,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:31,095 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] [2020-09-25 02:18:31,096 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:31,102 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times [2020-09-25 02:18:31,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:31,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127256537] [2020-09-25 02:18:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:18:31,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:18:31,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 02:18:31,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 02:18:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:18:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:31,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:18:31,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:31,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:18:31,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:31,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:18:31,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:31,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:31,821 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 02:18:31,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127256537] [2020-09-25 02:18:31,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:31,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:18:31,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119287583] [2020-09-25 02:18:31,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:18:31,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:31,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:18:31,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:31,859 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-09-25 02:18:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:32,098 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2020-09-25 02:18:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:18:32,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-25 02:18:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:32,122 INFO L225 Difference]: With dead ends: 143 [2020-09-25 02:18:32,122 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 02:18:32,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 02:18:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 02:18:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 02:18:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-25 02:18:32,204 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33 [2020-09-25 02:18:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:32,205 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-25 02:18:32,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:18:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-25 02:18:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 02:18:32,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:32,207 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] [2020-09-25 02:18:32,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:32,209 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times [2020-09-25 02:18:32,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:32,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067623152] [2020-09-25 02:18:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:18:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:18:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-25 02:18:32,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:18:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:18:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:18:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:32,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:18:32,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:18:32,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:32,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:32,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:32,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:18:32,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:32,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:18:32,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:32,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:18:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:18:32,993 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 02:18:32,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067623152] [2020-09-25 02:18:32,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:32,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:18:32,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906838139] [2020-09-25 02:18:32,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:18:32,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:32,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:18:32,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:18:32,998 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states. [2020-09-25 02:18:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:33,218 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2020-09-25 02:18:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:18:33,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-25 02:18:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:33,220 INFO L225 Difference]: With dead ends: 111 [2020-09-25 02:18:33,220 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 02:18:33,222 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 02:18:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 02:18:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-25 02:18:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 02:18:33,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-09-25 02:18:33,233 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33 [2020-09-25 02:18:33,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:33,234 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-09-25 02:18:33,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:18:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-09-25 02:18:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 02:18:33,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:33,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:33,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:18:33,237 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:33,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:33,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times [2020-09-25 02:18:33,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:33,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991883723] [2020-09-25 02:18:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:18:33,266 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:18:33,267 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:33,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:18:33,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:33 BoogieIcfgContainer [2020-09-25 02:18:33,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:33,298 INFO L168 Benchmark]: Toolchain (without parser) took 3328.91 ms. Allocated memory was 141.0 MB in the beginning and 233.8 MB in the end (delta: 92.8 MB). Free memory was 104.1 MB in the beginning and 131.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,300 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.77 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 103.3 MB in the beginning and 182.6 MB in the end (delta: -79.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,302 INFO L168 Benchmark]: Boogie Preprocessor took 66.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 180.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,303 INFO L168 Benchmark]: RCFGBuilder took 430.25 ms. Allocated memory is still 203.9 MB. Free memory was 180.1 MB in the beginning and 158.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,304 INFO L168 Benchmark]: TraceAbstraction took 2316.40 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 157.9 MB in the beginning and 131.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:33,308 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 505.77 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 103.3 MB in the beginning and 182.6 MB in the end (delta: -79.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 180.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.25 ms. Allocated memory is still 203.9 MB. Free memory was 180.1 MB in the beginning and 158.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2316.40 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 157.9 MB in the beginning and 131.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 56.7 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] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i