/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=BIGGEST --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/s4liff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:41:27,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:41:27,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:41:27,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:41:27,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:41:27,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:41:27,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:41:27,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:41:27,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:41:27,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:41:27,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:41:27,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:41:27,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:41:27,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:41:27,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:41:27,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:41:27,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:41:27,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:41:27,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:41:27,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:41:27,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:41:27,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:41:27,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:41:27,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:41:27,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:41:27,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:41:27,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:41:27,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:41:27,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:41:27,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:41:27,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:41:27,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:41:27,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:41:27,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:41:27,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:41:27,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:41:27,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:41:27,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:41:27,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:41:27,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:41:27,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:41:27,288 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 [2020-09-24 20:41:27,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:41:27,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:41:27,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:41:27,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:41:27,318 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:41:27,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:41:27,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:41:27,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:41:27,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:41:27,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:41:27,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:41:27,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:41:27,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:41:27,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:41:27,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:41:27,321 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:41:27,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:41:27,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:41:27,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:41:27,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:41:27,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:41:27,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:41:27,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:41:27,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:41:27,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:41:27,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:41:27,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:41:27,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:41:27,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:41:27,324 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:41:27,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:41:27,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:41:27,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:41:27,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:41:27,836 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:41:27,837 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s4liff.c [2020-09-24 20:41:27,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ea813be1/08d276f427ea445f944d10b69331875c/FLAG9f8e8623c [2020-09-24 20:41:28,464 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:41:28,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s4liff.c [2020-09-24 20:41:28,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ea813be1/08d276f427ea445f944d10b69331875c/FLAG9f8e8623c [2020-09-24 20:41:28,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ea813be1/08d276f427ea445f944d10b69331875c [2020-09-24 20:41:28,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:41:28,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:41:28,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:28,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:41:28,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:41:28,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:28" (1/1) ... [2020-09-24 20:41:28,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ff3771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:28, skipping insertion in model container [2020-09-24 20:41:28,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:28" (1/1) ... [2020-09-24 20:41:28,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:41:28,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:41:29,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:29,121 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:41:29,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:29,169 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:41:29,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29 WrapperNode [2020-09-24 20:41:29,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:29,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:41:29,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:41:29,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:41:29,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (1/1) ... [2020-09-24 20:41:29,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:41:29,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:41:29,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:41:29,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:41:29,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (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 [2020-09-24 20:41:29,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:41:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:41:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:41:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:41:29,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:41:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:41:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:41:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:41:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:41:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:41:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:41:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:41:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:41:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:41:29,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:41:29,714 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 20:41:29,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:29 BoogieIcfgContainer [2020-09-24 20:41:29,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:41:29,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:41:29,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:41:29,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:41:29,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:41:28" (1/3) ... [2020-09-24 20:41:29,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11378f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:29, skipping insertion in model container [2020-09-24 20:41:29,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:29" (2/3) ... [2020-09-24 20:41:29,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11378f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:29, skipping insertion in model container [2020-09-24 20:41:29,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:29" (3/3) ... [2020-09-24 20:41:29,732 INFO L109 eAbstractionObserver]: Analyzing ICFG s4liff.c [2020-09-24 20:41:29,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:41:29,757 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:41:29,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:41:29,825 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:41:29,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:41:29,826 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:41:29,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:41:29,826 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:41:29,826 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:41:29,826 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:41:29,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:41:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-24 20:41:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 20:41:29,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:29,864 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] [2020-09-24 20:41:29,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:29,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:29,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2050446892, now seen corresponding path program 1 times [2020-09-24 20:41:29,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:29,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852941996] [2020-09-24 20:41:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:30,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:30,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:30,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:30,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:30,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:41:30,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:41:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-24 20:41:30,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 20:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:41:30,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:30,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:30,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:30,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:30,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:41:30,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:30,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:30,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:30,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:30,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:30,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:30,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852941996] [2020-09-24 20:41:30,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:30,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:41:30,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938481157] [2020-09-24 20:41:30,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:41:30,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:30,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:41:30,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:41:30,547 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2020-09-24 20:41:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:30,743 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2020-09-24 20:41:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:41:30,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-24 20:41:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:30,757 INFO L225 Difference]: With dead ends: 125 [2020-09-24 20:41:30,758 INFO L226 Difference]: Without dead ends: 59 [2020-09-24 20:41:30,763 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 [2020-09-24 20:41:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-24 20:41:30,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-24 20:41:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 20:41:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-09-24 20:41:30,820 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 33 [2020-09-24 20:41:30,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:30,820 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-09-24 20:41:30,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:41:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-09-24 20:41:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 20:41:30,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:30,823 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] [2020-09-24 20:41:30,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:41:30,824 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:30,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:30,824 INFO L82 PathProgramCache]: Analyzing trace with hash -341126016, now seen corresponding path program 1 times [2020-09-24 20:41:30,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:30,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765955275] [2020-09-24 20:41:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:30,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:31,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:31,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:31,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:41:31,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:41:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-24 20:41:31,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:31,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:41:31,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:41:31,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:41:31,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:31,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:31,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:31,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:31,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:31,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:41:31,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:31,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:31,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:31,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:41:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:41:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:31,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:31,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765955275] [2020-09-24 20:41:31,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:31,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:41:31,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075987523] [2020-09-24 20:41:31,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:41:31,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:31,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:41:31,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:41:31,619 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states. [2020-09-24 20:41:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:31,813 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-09-24 20:41:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 20:41:31,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-24 20:41:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:31,816 INFO L225 Difference]: With dead ends: 93 [2020-09-24 20:41:31,816 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 20:41:31,817 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 [2020-09-24 20:41:31,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 20:41:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 20:41:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 20:41:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-09-24 20:41:31,829 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 33 [2020-09-24 20:41:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:31,829 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-09-24 20:41:31,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:41:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-09-24 20:41:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 20:41:31,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:31,832 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] [2020-09-24 20:41:31,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:31,832 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:31,833 INFO L82 PathProgramCache]: Analyzing trace with hash 746418975, now seen corresponding path program 1 times [2020-09-24 20:41:31,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:31,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937174593] [2020-09-24 20:41:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:41:31,867 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:41:31,867 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:31,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:41:31,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:31 BoogieIcfgContainer [2020-09-24 20:41:31,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:31,900 INFO L168 Benchmark]: Toolchain (without parser) took 3080.26 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 102.2 MB in the beginning and 136.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,902 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.69 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 90.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,905 INFO L168 Benchmark]: Boogie Preprocessor took 126.82 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 179.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,906 INFO L168 Benchmark]: RCFGBuilder took 422.86 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 158.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,907 INFO L168 Benchmark]: TraceAbstraction took 2174.51 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 158.8 MB in the beginning and 136.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:31,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.69 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 90.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.82 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 179.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.86 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 158.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2174.51 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 158.8 MB in the beginning and 136.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 53.9 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] = N [L30] i=0 [L30] COND TRUE i