/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/brs5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:08:36,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:08:36,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:08:36,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:08:36,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:08:36,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:08:36,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:08:36,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:08:36,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:08:36,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:08:36,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:08:36,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:08:36,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:08:36,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:08:36,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:08:36,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:08:36,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:08:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:08:36,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:08:36,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:08:36,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:08:36,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:08:36,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:08:36,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:08:36,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:08:36,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:08:36,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:08:36,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:08:36,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:08:36,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:08:36,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:08:36,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:08:36,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:08:36,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:08:36,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:08:36,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:08:36,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:08:36,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:08:36,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:08:36,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:08:36,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:08:36,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:08:36,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:08:36,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:08:36,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:08:36,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:08:36,226 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:08:36,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:08:36,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:08:36,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:08:36,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:08:36,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:08:36,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:08:36,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:08:36,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:08:36,228 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:08:36,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:08:36,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:08:36,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:08:36,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:08:36,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:08:36,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:08:36,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:08:36,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:08:36,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:08:36,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:08:36,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:08:36,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:08:36,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:08:36,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:08:36,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:08:36,232 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:08:36,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:08:36,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:08:36,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:08:36,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:08:36,787 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:08:36,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs5f.c [2020-09-25 01:08:36,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ea92229/71d700b8d0d640f4a098156531c7db1f/FLAG0554c2d98 [2020-09-25 01:08:37,472 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:08:37,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs5f.c [2020-09-25 01:08:37,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ea92229/71d700b8d0d640f4a098156531c7db1f/FLAG0554c2d98 [2020-09-25 01:08:37,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ea92229/71d700b8d0d640f4a098156531c7db1f [2020-09-25 01:08:37,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:08:37,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:08:37,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:37,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:08:37,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:08:37,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:37" (1/1) ... [2020-09-25 01:08:37,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6017e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:37, skipping insertion in model container [2020-09-25 01:08:37,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:37" (1/1) ... [2020-09-25 01:08:37,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:08:37,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:08:38,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:38,209 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:08:38,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:38,255 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:08:38,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38 WrapperNode [2020-09-25 01:08:38,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:38,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:08:38,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:08:38,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:08:38,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... [2020-09-25 01:08:38,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:08:38,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:08:38,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:08:38,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:08:38,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:08:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:08:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:08:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:08:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:08:38,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:08:38,850 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 01:08:38,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:38 BoogieIcfgContainer [2020-09-25 01:08:38,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:08:38,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:08:38,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:08:38,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:08:38,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:08:37" (1/3) ... [2020-09-25 01:08:38,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d08a10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:38, skipping insertion in model container [2020-09-25 01:08:38,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:38" (2/3) ... [2020-09-25 01:08:38,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d08a10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:38, skipping insertion in model container [2020-09-25 01:08:38,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:38" (3/3) ... [2020-09-25 01:08:38,866 INFO L109 eAbstractionObserver]: Analyzing ICFG brs5f.c [2020-09-25 01:08:38,879 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:08:38,889 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:08:38,913 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:08:38,944 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:08:38,944 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:08:38,944 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:08:38,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:08:38,945 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:08:38,945 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:08:38,945 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:08:38,945 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:08:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-09-25 01:08:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:08:38,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:38,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:38,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:38,985 INFO L82 PathProgramCache]: Analyzing trace with hash 221259408, now seen corresponding path program 1 times [2020-09-25 01:08:38,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:38,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587021479] [2020-09-25 01:08:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:39,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:39,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:39,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:39,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:08:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:08:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-09-25 01:08:39,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 01:08:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:08:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:08:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:39,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:39,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:39,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:08:39,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:08:39,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:39,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:39,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:08:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:39,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:39,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:08:39,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:39,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:08:39,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:39,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:08:39,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587021479] [2020-09-25 01:08:39,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:08:39,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:08:39,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745118782] [2020-09-25 01:08:39,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:08:39,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:08:39,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:08:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:08:39,791 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2020-09-25 01:08:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:08:39,967 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-09-25 01:08:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:08:39,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-25 01:08:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:08:39,984 INFO L225 Difference]: With dead ends: 101 [2020-09-25 01:08:39,984 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 01:08:39,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:08:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 01:08:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 01:08:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 01:08:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2020-09-25 01:08:40,057 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 30 [2020-09-25 01:08:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:08:40,057 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2020-09-25 01:08:40,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:08:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-09-25 01:08:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:08:40,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:40,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:40,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:08:40,061 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash -151091841, now seen corresponding path program 1 times [2020-09-25 01:08:40,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:40,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754593763] [2020-09-25 01:08:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:40,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:40,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:40,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:40,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:08:40,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:08:40,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 01:08:40,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:08:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 01:08:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:08:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:08:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:08:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:40,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:40,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:40,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:08:40,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:08:40,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:08:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:40,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:40,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:08:40,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:40,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:08:40,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:40,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:08:40,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:40,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:08:40,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:08:40,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754593763] [2020-09-25 01:08:40,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:08:40,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:08:40,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35223697] [2020-09-25 01:08:40,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:08:40,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:08:40,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:08:40,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:08:40,575 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 5 states. [2020-09-25 01:08:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:08:40,740 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-09-25 01:08:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:08:40,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 01:08:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:08:40,742 INFO L225 Difference]: With dead ends: 67 [2020-09-25 01:08:40,743 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 01:08:40,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:08:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 01:08:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-25 01:08:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 01:08:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2020-09-25 01:08:40,755 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 30 [2020-09-25 01:08:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:08:40,756 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2020-09-25 01:08:40,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:08:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2020-09-25 01:08:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 01:08:40,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:40,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:40,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:08:40,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:40,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:40,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1707000309, now seen corresponding path program 1 times [2020-09-25 01:08:40,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:40,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835840438] [2020-09-25 01:08:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:08:40,785 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:08:40,786 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:08:40,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:08:40,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:08:40 BoogieIcfgContainer [2020-09-25 01:08:40,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:08:40,818 INFO L168 Benchmark]: Toolchain (without parser) took 3007.13 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 102.4 MB in the beginning and 163.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,819 INFO L168 Benchmark]: CDTParser took 0.29 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.64 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,822 INFO L168 Benchmark]: Boogie Preprocessor took 140.47 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.2 MB in the beginning and 178.5 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,823 INFO L168 Benchmark]: RCFGBuilder took 458.21 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 160.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,824 INFO L168 Benchmark]: TraceAbstraction took 1957.25 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 159.5 MB in the beginning and 163.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2020-09-25 01:08:40,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 438.64 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.47 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.2 MB in the beginning and 178.5 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.21 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 160.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1957.25 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 159.5 MB in the beginning and 163.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 28.5 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