/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=SMALLEST --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/brs1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:28:18,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:28:18,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:28:18,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:28:18,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:28:18,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:28:18,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:28:18,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:28:18,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:28:18,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:28:18,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:28:18,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:28:18,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:28:18,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:28:18,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:28:18,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:28:18,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:28:18,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:28:18,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:28:18,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:28:18,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:28:18,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:28:18,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:28:18,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:28:18,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:28:18,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:28:18,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:28:18,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:28:18,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:28:18,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:28:18,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:28:18,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:28:18,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:28:18,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:28:18,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:28:18,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:28:18,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:28:18,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:28:18,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:28:18,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:28:18,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:28:18,199 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 18:28:18,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:28:18,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:28:18,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:28:18,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:28:18,259 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:28:18,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:28:18,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:28:18,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:28:18,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:28:18,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:28:18,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:28:18,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:28:18,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:28:18,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:28:18,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:28:18,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:28:18,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:28:18,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:28:18,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:28:18,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:28:18,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:28:18,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:28:18,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:28:18,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:28:18,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:28:18,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:28:18,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:28:18,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:28:18,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:28:18,265 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:28:18,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:28:18,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:28:18,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:28:18,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:28:18,832 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:28:18,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs1f.c [2020-09-24 18:28:18,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46aada1ac/b33972d132874d33b5f541be73338b01/FLAG96c0a438d [2020-09-24 18:28:19,420 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:28:19,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs1f.c [2020-09-24 18:28:19,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46aada1ac/b33972d132874d33b5f541be73338b01/FLAG96c0a438d [2020-09-24 18:28:19,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46aada1ac/b33972d132874d33b5f541be73338b01 [2020-09-24 18:28:19,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:28:19,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:28:19,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:19,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:28:19,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:28:19,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:19" (1/1) ... [2020-09-24 18:28:19,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e01cf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:19, skipping insertion in model container [2020-09-24 18:28:19,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:19" (1/1) ... [2020-09-24 18:28:19,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:28:19,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:28:20,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:20,096 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:28:20,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:20,221 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:28:20,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20 WrapperNode [2020-09-24 18:28:20,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:20,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:28:20,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:28:20,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:28:20,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (1/1) ... [2020-09-24 18:28:20,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:28:20,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:28:20,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:28:20,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:28:20,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (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 18:28:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:28:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:28:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:28:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:28:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:28:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:28:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:28:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:28:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:28:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:28:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:28:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:28:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:28:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:28:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:28:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:28:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:28:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:28:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:28:20,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:28:20,708 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 18:28:20,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:20 BoogieIcfgContainer [2020-09-24 18:28:20,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:28:20,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:28:20,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:28:20,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:28:20,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:28:19" (1/3) ... [2020-09-24 18:28:20,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592343a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:20, skipping insertion in model container [2020-09-24 18:28:20,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:20" (2/3) ... [2020-09-24 18:28:20,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592343a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:20, skipping insertion in model container [2020-09-24 18:28:20,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:20" (3/3) ... [2020-09-24 18:28:20,723 INFO L109 eAbstractionObserver]: Analyzing ICFG brs1f.c [2020-09-24 18:28:20,734 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:28:20,744 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:28:20,766 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:28:20,794 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:28:20,794 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:28:20,794 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:28:20,795 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:28:20,795 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:28:20,795 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:28:20,795 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:28:20,795 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:28:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-09-24 18:28:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:28:20,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:20,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:20,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:20,832 INFO L82 PathProgramCache]: Analyzing trace with hash 221259408, now seen corresponding path program 1 times [2020-09-24 18:28:20,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:20,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125787097] [2020-09-24 18:28:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:28:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:28:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-24 18:28:21,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 18:28:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:28:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:21,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:21,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:21,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:21,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:21,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:28:21,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:21,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:21,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:28:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:21,512 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 18:28:21,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125787097] [2020-09-24 18:28:21,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:21,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:28:21,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179796106] [2020-09-24 18:28:21,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:28:21,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:21,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:28:21,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:28:21,545 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2020-09-24 18:28:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:21,706 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2020-09-24 18:28:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:28:21,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 18:28:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:21,719 INFO L225 Difference]: With dead ends: 100 [2020-09-24 18:28:21,719 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 18:28:21,724 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 18:28:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 18:28:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 18:28:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 18:28:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-09-24 18:28:21,775 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 30 [2020-09-24 18:28:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:21,776 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-09-24 18:28:21,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:28:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-09-24 18:28:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:28:21,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:21,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:21,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:28:21,779 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:21,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:21,779 INFO L82 PathProgramCache]: Analyzing trace with hash -151091841, now seen corresponding path program 1 times [2020-09-24 18:28:21,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:21,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338089765] [2020-09-24 18:28:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:21,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:21,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:22,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:22,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:28:22,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:28:22,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-24 18:28:22,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:28:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 18:28:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:28:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:28:22,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:22,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:22,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:28:22,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:22,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:22,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:22,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:22,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:22,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:28:22,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:28:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:28:22,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:28:22,240 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 18:28:22,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338089765] [2020-09-24 18:28:22,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:22,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:28:22,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497377286] [2020-09-24 18:28:22,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:28:22,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:22,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:28:22,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:28:22,244 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 5 states. [2020-09-24 18:28:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:22,388 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-09-24 18:28:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:28:22,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 18:28:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:22,390 INFO L225 Difference]: With dead ends: 66 [2020-09-24 18:28:22,390 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 18:28:22,391 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 18:28:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 18:28:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 18:28:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 18:28:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-09-24 18:28:22,401 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 30 [2020-09-24 18:28:22,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:22,401 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-09-24 18:28:22,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:28:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-09-24 18:28:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 18:28:22,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:22,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:22,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:28:22,404 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:22,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1707000309, now seen corresponding path program 1 times [2020-09-24 18:28:22,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:22,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65504881] [2020-09-24 18:28:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:28:22,427 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:28:22,427 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:28:22,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:28:22,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:28:22 BoogieIcfgContainer [2020-09-24 18:28:22,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:28:22,471 INFO L168 Benchmark]: Toolchain (without parser) took 2666.42 ms. Allocated memory was 138.9 MB in the beginning and 232.8 MB in the end (delta: 93.8 MB). Free memory was 102.0 MB in the beginning and 165.5 MB in the end (delta: -63.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,472 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.50 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 101.3 MB in the beginning and 178.7 MB in the end (delta: -77.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,475 INFO L168 Benchmark]: Boogie Preprocessor took 42.10 ms. Allocated memory is still 199.8 MB. Free memory was 178.7 MB in the beginning and 176.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,476 INFO L168 Benchmark]: RCFGBuilder took 449.25 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 157.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,478 INFO L168 Benchmark]: TraceAbstraction took 1749.30 ms. Allocated memory was 199.8 MB in the beginning and 232.8 MB in the end (delta: 33.0 MB). Free memory was 157.1 MB in the beginning and 165.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:22,493 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.50 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 101.3 MB in the beginning and 178.7 MB in the end (delta: -77.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.10 ms. Allocated memory is still 199.8 MB. Free memory was 178.7 MB in the beginning and 176.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.25 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 157.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1749.30 ms. Allocated memory was 199.8 MB in the beginning and 232.8 MB in the end (delta: 33.0 MB). Free memory was 157.1 MB in the beginning and 165.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i