/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 19:37:07,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 19:37:08,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 19:37:08,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 19:37:08,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 19:37:08,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 19:37:08,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 19:37:08,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 19:37:08,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 19:37:08,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 19:37:08,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 19:37:08,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 19:37:08,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 19:37:08,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 19:37:08,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 19:37:08,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 19:37:08,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 19:37:08,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 19:37:08,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 19:37:08,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 19:37:08,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 19:37:08,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 19:37:08,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 19:37:08,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 19:37:08,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 19:37:08,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 19:37:08,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 19:37:08,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 19:37:08,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 19:37:08,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 19:37:08,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 19:37:08,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 19:37:08,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 19:37:08,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 19:37:08,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 19:37:08,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 19:37:08,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 19:37:08,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 19:37:08,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 19:37:08,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 19:37:08,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 19:37:08,181 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 [2020-10-26 19:37:08,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 19:37:08,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 19:37:08,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 19:37:08,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 19:37:08,248 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 19:37:08,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 19:37:08,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 19:37:08,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 19:37:08,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 19:37:08,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 19:37:08,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 19:37:08,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 19:37:08,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 19:37:08,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 19:37:08,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 19:37:08,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 19:37:08,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 19:37:08,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 19:37:08,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 19:37:08,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 19:37:08,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 19:37:08,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:37:08,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 19:37:08,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 19:37:08,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 19:37:08,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 19:37:08,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 19:37:08,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 19:37:08,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 19:37:08,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 19:37:08,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 19:37:08,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 19:37:08,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 19:37:08,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 19:37:08,836 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 19:37:08,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-10-26 19:37:08,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b79c6a90/640bd406bb84428fb611a12d66547b92/FLAG6da35b604 [2020-10-26 19:37:09,621 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 19:37:09,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c [2020-10-26 19:37:09,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b79c6a90/640bd406bb84428fb611a12d66547b92/FLAG6da35b604 [2020-10-26 19:37:09,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b79c6a90/640bd406bb84428fb611a12d66547b92 [2020-10-26 19:37:09,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 19:37:10,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 19:37:10,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 19:37:10,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 19:37:10,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 19:37:10,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:09" (1/1) ... [2020-10-26 19:37:10,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6175e918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10, skipping insertion in model container [2020-10-26 19:37:10,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:09" (1/1) ... [2020-10-26 19:37:10,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 19:37:10,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 19:37:10,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:37:10,254 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 19:37:10,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:37:10,300 INFO L208 MainTranslator]: Completed translation [2020-10-26 19:37:10,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10 WrapperNode [2020-10-26 19:37:10,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 19:37:10,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 19:37:10,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 19:37:10,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 19:37:10,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (1/1) ... [2020-10-26 19:37:10,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 19:37:10,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 19:37:10,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 19:37:10,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 19:37:10,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (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 [2020-10-26 19:37:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 19:37:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 19:37:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 19:37:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 19:37:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 19:37:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 19:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 19:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 19:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 19:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 19:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 19:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 19:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 19:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 19:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 19:37:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 19:37:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 19:37:11,065 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 19:37:11,066 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-26 19:37:11,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:11 BoogieIcfgContainer [2020-10-26 19:37:11,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 19:37:11,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 19:37:11,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 19:37:11,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 19:37:11,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:37:09" (1/3) ... [2020-10-26 19:37:11,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e1675a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:11, skipping insertion in model container [2020-10-26 19:37:11,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:10" (2/3) ... [2020-10-26 19:37:11,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e1675a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:11, skipping insertion in model container [2020-10-26 19:37:11,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:11" (3/3) ... [2020-10-26 19:37:11,086 INFO L111 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-10-26 19:37:11,100 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 19:37:11,107 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 19:37:11,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 19:37:11,173 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 19:37:11,173 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 19:37:11,173 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 19:37:11,173 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 19:37:11,173 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 19:37:11,174 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 19:37:11,174 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 19:37:11,174 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 19:37:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-26 19:37:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-26 19:37:11,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:37:11,212 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] [2020-10-26 19:37:11,213 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:37:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:37:11,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1662535376, now seen corresponding path program 1 times [2020-10-26 19:37:11,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:37:11,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334717839] [2020-10-26 19:37:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:37:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:11,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:11,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:12,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:13,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 19:37:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 19:37:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1623 [2020-10-26 19:37:13,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 19:37:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:37:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 19:37:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 19:37:13,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:37:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:13,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:13,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:37:13,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:37:13,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 19:37:13,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:37:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:37:13,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:37:13,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:37:13,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-26 19:37:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:13,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:13,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:37:13,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:37:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:37:13,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:37:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:37:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:37:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:37:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:37:13,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334717839] [2020-10-26 19:37:13,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:37:13,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 19:37:13,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399547299] [2020-10-26 19:37:13,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 19:37:13,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:37:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 19:37:13,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 19:37:13,321 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2020-10-26 19:37:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:37:13,610 INFO L93 Difference]: Finished difference Result 79 states and 108 transitions. [2020-10-26 19:37:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 19:37:13,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-26 19:37:13,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:37:13,621 INFO L225 Difference]: With dead ends: 79 [2020-10-26 19:37:13,621 INFO L226 Difference]: Without dead ends: 38 [2020-10-26 19:37:13,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 19:37:13,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-26 19:37:13,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-26 19:37:13,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-26 19:37:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-10-26 19:37:13,674 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-10-26 19:37:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:37:13,675 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-10-26 19:37:13,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 19:37:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-10-26 19:37:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 19:37:13,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:37:13,677 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] [2020-10-26 19:37:13,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 19:37:13,677 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:37:13,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:37:13,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1803017237, now seen corresponding path program 1 times [2020-10-26 19:37:13,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:37:13,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684432058] [2020-10-26 19:37:13,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:37:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:13,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:14,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:16,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:16,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 19:37:16,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 19:37:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2744 [2020-10-26 19:37:16,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 19:37:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-26 19:37:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 19:37:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:37:16,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:37:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:16,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:16,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:16,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:37:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:37:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:37:16,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:37:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:37:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:37:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:37:16,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-26 19:37:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:37:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:37:16,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:37:16,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:37:16,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:37:16,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:37:16,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:37:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:37:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:37:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:37:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:37:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:37:16,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684432058] [2020-10-26 19:37:16,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:37:16,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 19:37:16,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153485752] [2020-10-26 19:37:16,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 19:37:16,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:37:16,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 19:37:16,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-26 19:37:16,918 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 10 states. [2020-10-26 19:37:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:37:17,433 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2020-10-26 19:37:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 19:37:17,434 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-10-26 19:37:17,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:37:17,435 INFO L225 Difference]: With dead ends: 61 [2020-10-26 19:37:17,436 INFO L226 Difference]: Without dead ends: 46 [2020-10-26 19:37:17,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:37:17,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-26 19:37:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-26 19:37:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-26 19:37:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-26 19:37:17,458 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2020-10-26 19:37:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:37:17,458 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-26 19:37:17,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 19:37:17,458 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-26 19:37:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 19:37:17,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:37:17,460 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] [2020-10-26 19:37:17,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 19:37:17,460 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:37:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:37:17,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2098923049, now seen corresponding path program 1 times [2020-10-26 19:37:17,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:37:17,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469386111] [2020-10-26 19:37:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:37:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 19:37:17,487 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 19:37:17,488 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 19:37:17,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 19:37:17,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:37:17 BoogieIcfgContainer [2020-10-26 19:37:17,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 19:37:17,528 INFO L168 Benchmark]: Toolchain (without parser) took 7526.75 ms. Allocated memory was 161.5 MB in the beginning and 232.8 MB in the end (delta: 71.3 MB). Free memory was 136.5 MB in the beginning and 102.2 MB in the end (delta: 34.3 MB). Peak memory consumption was 106.2 MB. Max. memory is 8.0 GB. [2020-10-26 19:37:17,529 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 161.5 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 19:37:17,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.37 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 125.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-26 19:37:17,532 INFO L168 Benchmark]: Boogie Preprocessor took 47.28 ms. Allocated memory is still 161.5 MB. Free memory was 125.8 MB in the beginning and 124.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-26 19:37:17,533 INFO L168 Benchmark]: RCFGBuilder took 715.26 ms. Allocated memory is still 161.5 MB. Free memory was 124.1 MB in the beginning and 142.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. [2020-10-26 19:37:17,535 INFO L168 Benchmark]: TraceAbstraction took 6447.22 ms. Allocated memory was 161.5 MB in the beginning and 232.8 MB in the end (delta: 71.3 MB). Free memory was 142.2 MB in the beginning and 102.2 MB in the end (delta: 40.0 MB). Peak memory consumption was 111.3 MB. Max. memory is 8.0 GB. [2020-10-26 19:37:17,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 161.5 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 293.37 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 125.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.28 ms. Allocated memory is still 161.5 MB. Free memory was 125.8 MB in the beginning and 124.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 715.26 ms. Allocated memory is still 161.5 MB. Free memory was 124.1 MB in the beginning and 142.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6447.22 ms. Allocated memory was 161.5 MB in the beginning and 232.8 MB in the end (delta: 71.3 MB). Free memory was 142.2 MB in the beginning and 102.2 MB in the end (delta: 40.0 MB). Peak memory consumption was 111.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i