/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=LOWLEXORDER --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/s5iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:40,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:40,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:40,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:40,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:40,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:40,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:40,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:40,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:40,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:40,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:40,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:40,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:40,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:40,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:40,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:40,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:40,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:40,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:40,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:40,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:40,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:40,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:40,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:40,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:40,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:40,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:40,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:40,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:40,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:40,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:40,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:40,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:40,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:40,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:40,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:40,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:40,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:40,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:40,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:40,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:40,985 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 21:49:41,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:41,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:41,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:41,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:41,037 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:41,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:41,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:41,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:41,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:41,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:41,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:41,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:41,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:41,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:41,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:41,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:41,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:41,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:41,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:41,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:41,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:41,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:41,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:41,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:41,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:41,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:41,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:41,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:41,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:41,044 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:41,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:41,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:41,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:41,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:41,565 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:41,566 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s5iff.c [2020-09-24 21:49:41,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c286bf19/a538af465014466596488fd8a8cafa22/FLAG88c595ec0 [2020-09-24 21:49:42,200 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:42,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s5iff.c [2020-09-24 21:49:42,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c286bf19/a538af465014466596488fd8a8cafa22/FLAG88c595ec0 [2020-09-24 21:49:42,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c286bf19/a538af465014466596488fd8a8cafa22 [2020-09-24 21:49:42,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:42,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:42,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:42,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:42,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:42,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:42,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42, skipping insertion in model container [2020-09-24 21:49:42,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:42,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:42,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:42,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:42,881 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:42,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:42,929 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:42,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42 WrapperNode [2020-09-24 21:49:42,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:42,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:42,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:42,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:43,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:43,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:43,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:43,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:43,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:43,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (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 21:49:43,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:43,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:43,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:43,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:43,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:43,459 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:43,460 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 21:49:43,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:43 BoogieIcfgContainer [2020-09-24 21:49:43,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:43,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:43,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:43,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:42" (1/3) ... [2020-09-24 21:49:43,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8379b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:43, skipping insertion in model container [2020-09-24 21:49:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42" (2/3) ... [2020-09-24 21:49:43,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8379b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:43, skipping insertion in model container [2020-09-24 21:49:43,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:43" (3/3) ... [2020-09-24 21:49:43,477 INFO L109 eAbstractionObserver]: Analyzing ICFG s5iff.c [2020-09-24 21:49:43,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:43,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:43,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:43,571 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:43,572 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:43,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:43,572 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:43,572 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:43,573 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:43,573 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:43,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:43,602 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-09-24 21:49:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 21:49:43,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:43,613 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] [2020-09-24 21:49:43,613 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:43,620 INFO L82 PathProgramCache]: Analyzing trace with hash 171473808, now seen corresponding path program 1 times [2020-09-24 21:49:43,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:43,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25530636] [2020-09-24 21:49:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:43,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:43,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:44,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 21:49:44,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:49:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 21:49:44,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 21:49:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:49:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:44,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:44,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:44,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:49:44,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:44,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:44,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:44,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:44,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:49:44,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:44,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:44,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:44,161 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 21:49:44,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25530636] [2020-09-24 21:49:44,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:44,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:49:44,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851651262] [2020-09-24 21:49:44,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:49:44,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:44,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:49:44,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:49:44,193 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-09-24 21:49:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:44,380 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2020-09-24 21:49:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:49:44,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-09-24 21:49:44,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:44,394 INFO L225 Difference]: With dead ends: 113 [2020-09-24 21:49:44,395 INFO L226 Difference]: Without dead ends: 53 [2020-09-24 21:49:44,399 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 21:49:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-24 21:49:44,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-24 21:49:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 21:49:44,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-09-24 21:49:44,454 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 31 [2020-09-24 21:49:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:44,454 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-09-24 21:49:44,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:49:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-09-24 21:49:44,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 21:49:44,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:44,456 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] [2020-09-24 21:49:44,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:44,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash 921692051, now seen corresponding path program 1 times [2020-09-24 21:49:44,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:44,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448060544] [2020-09-24 21:49:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:44,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:44,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 21:49:44,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:49:44,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-24 21:49:44,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:44,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:44,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:44,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:49:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:44,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:44,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:45,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:45,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:45,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:45,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:49:45,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:45,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:45,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:45,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:45,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:45,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:45,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:45,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:49:45,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:45,035 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 21:49:45,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448060544] [2020-09-24 21:49:45,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:45,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:45,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154027746] [2020-09-24 21:49:45,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:45,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:45,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:45,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:45,040 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 5 states. [2020-09-24 21:49:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:45,227 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2020-09-24 21:49:45,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:45,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-09-24 21:49:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:45,229 INFO L225 Difference]: With dead ends: 80 [2020-09-24 21:49:45,229 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 21:49:45,231 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 21:49:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 21:49:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 21:49:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 21:49:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-09-24 21:49:45,242 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 31 [2020-09-24 21:49:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:45,242 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-09-24 21:49:45,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:45,243 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-09-24 21:49:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 21:49:45,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:45,245 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] [2020-09-24 21:49:45,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:45,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:45,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:45,246 INFO L82 PathProgramCache]: Analyzing trace with hash -827220298, now seen corresponding path program 1 times [2020-09-24 21:49:45,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:45,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975511230] [2020-09-24 21:49:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:45,276 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:45,277 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:45,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:49:45,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:45 BoogieIcfgContainer [2020-09-24 21:49:45,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:45,310 INFO L168 Benchmark]: Toolchain (without parser) took 2741.54 ms. Allocated memory was 138.4 MB in the beginning and 232.8 MB in the end (delta: 94.4 MB). Free memory was 101.5 MB in the beginning and 171.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,311 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.32 ms. Allocated memory is still 138.4 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,314 INFO L168 Benchmark]: Boogie Preprocessor took 140.22 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.4 MB in the beginning and 179.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,314 INFO L168 Benchmark]: RCFGBuilder took 396.52 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 159.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,315 INFO L168 Benchmark]: TraceAbstraction took 1837.47 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 158.8 MB in the beginning and 171.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:45,319 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 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.32 ms. Allocated memory is still 138.4 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.22 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.4 MB in the beginning and 179.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.52 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 159.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1837.47 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 158.8 MB in the beginning and 171.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i