/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/s2liff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 14:41:56,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 14:41:56,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 14:41:57,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 14:41:57,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 14:41:57,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 14:41:57,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 14:41:57,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 14:41:57,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 14:41:57,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 14:41:57,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 14:41:57,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 14:41:57,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 14:41:57,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 14:41:57,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 14:41:57,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 14:41:57,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 14:41:57,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 14:41:57,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 14:41:57,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 14:41:57,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 14:41:57,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 14:41:57,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 14:41:57,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 14:41:57,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 14:41:57,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 14:41:57,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 14:41:57,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 14:41:57,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 14:41:57,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 14:41:57,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 14:41:57,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 14:41:57,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 14:41:57,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 14:41:57,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 14:41:57,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 14:41:57,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 14:41:57,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 14:41:57,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 14:41:57,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 14:41:57,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 14:41:57,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 14:41:57,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 14:41:57,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 14:41:57,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 14:41:57,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 14:41:57,126 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 14:41:57,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 14:41:57,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 14:41:57,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 14:41:57,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 14:41:57,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 14:41:57,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 14:41:57,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 14:41:57,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 14:41:57,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 14:41:57,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 14:41:57,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 14:41:57,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 14:41:57,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 14:41:57,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 14:41:57,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 14:41:57,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 14:41:57,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:41:57,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 14:41:57,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 14:41:57,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 14:41:57,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 14:41:57,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 14:41:57,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 14:41:57,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 14:41:57,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 14:41:57,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 14:41:57,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 14:41:57,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 14:41:57,663 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 14:41:57,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 14:41:57,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-27 14:41:57,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7188a0ad9/f7633cceac6d4162b1f5664b5e928deb/FLAG2bab998b9 [2020-10-27 14:41:58,481 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 14:41:58,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-27 14:41:58,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7188a0ad9/f7633cceac6d4162b1f5664b5e928deb/FLAG2bab998b9 [2020-10-27 14:41:58,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7188a0ad9/f7633cceac6d4162b1f5664b5e928deb [2020-10-27 14:41:58,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 14:41:58,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 14:41:58,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 14:41:58,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 14:41:58,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 14:41:58,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:41:58" (1/1) ... [2020-10-27 14:41:58,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2468e284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:58, skipping insertion in model container [2020-10-27 14:41:58,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:41:58" (1/1) ... [2020-10-27 14:41:58,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 14:41:58,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 14:41:59,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:41:59,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 14:41:59,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:41:59,252 INFO L208 MainTranslator]: Completed translation [2020-10-27 14:41:59,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59 WrapperNode [2020-10-27 14:41:59,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 14:41:59,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 14:41:59,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 14:41:59,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 14:41:59,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... [2020-10-27 14:41:59,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 14:41:59,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 14:41:59,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 14:41:59,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 14:41:59,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:41:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 14:41:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 14:41:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 14:41:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 14:41:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 14:41:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 14:41:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 14:41:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 14:41:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 14:41:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 14:41:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 14:41:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 14:41:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 14:41:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 14:41:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 14:41:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 14:41:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 14:41:59,760 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 14:41:59,761 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 14:41:59,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:41:59 BoogieIcfgContainer [2020-10-27 14:41:59,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 14:41:59,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 14:41:59,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 14:41:59,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 14:41:59,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:41:58" (1/3) ... [2020-10-27 14:41:59,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e48d45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:41:59, skipping insertion in model container [2020-10-27 14:41:59,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:41:59" (2/3) ... [2020-10-27 14:41:59,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e48d45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:41:59, skipping insertion in model container [2020-10-27 14:41:59,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:41:59" (3/3) ... [2020-10-27 14:41:59,803 INFO L111 eAbstractionObserver]: Analyzing ICFG s2liff.c [2020-10-27 14:41:59,833 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 14:41:59,843 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 14:41:59,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 14:41:59,916 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 14:41:59,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 14:41:59,917 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 14:41:59,917 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 14:41:59,917 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 14:41:59,917 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 14:41:59,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 14:41:59,918 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 14:41:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-27 14:41:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 14:41:59,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:41:59,958 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] [2020-10-27 14:41:59,959 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:41:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:41:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 371341983, now seen corresponding path program 1 times [2020-10-27 14:41:59,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:41:59,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051793621] [2020-10-27 14:41:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:42:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:00,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:00,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:01,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 14:42:01,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 14:42:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-27 14:42:01,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:42:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 14:42:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:42:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 14:42:01,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:42:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:01,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:01,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:42:01,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:42:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 14:42:01,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:42:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:42:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:42:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:42:01,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 14:42:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:42:01,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:42:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:42:01,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:01,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:42:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 14:42:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:42:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:42:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:42:01,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051793621] [2020-10-27 14:42:01,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:42:01,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 14:42:01,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282703113] [2020-10-27 14:42:01,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 14:42:01,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:42:01,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 14:42:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 14:42:01,360 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2020-10-27 14:42:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:42:01,532 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-10-27 14:42:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 14:42:01,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-27 14:42:01,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:42:01,543 INFO L225 Difference]: With dead ends: 65 [2020-10-27 14:42:01,543 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 14:42:01,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 14:42:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 14:42:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 14:42:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 14:42:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-10-27 14:42:01,597 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 24 [2020-10-27 14:42:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:42:01,598 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-10-27 14:42:01,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 14:42:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-10-27 14:42:01,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 14:42:01,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:42:01,599 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] [2020-10-27 14:42:01,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 14:42:01,600 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:42:01,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:42:01,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1793608214, now seen corresponding path program 1 times [2020-10-27 14:42:01,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:42:01,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537216158] [2020-10-27 14:42:01,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:42:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:01,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:02,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:02,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 14:42:02,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:42:02,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-27 14:42:02,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 14:42:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:42:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 14:42:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-27 14:42:02,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:42:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:02,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:02,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:02,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:42:02,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:42:02,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 14:42:02,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:42:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:42:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:42:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:42:02,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 14:42:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:42:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:42:02,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:42:02,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:42:02,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:42:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:42:02,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:42:02,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:42:02,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:42:02,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:42:02,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:42:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:42:02,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537216158] [2020-10-27 14:42:02,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:42:02,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 14:42:02,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109691395] [2020-10-27 14:42:02,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 14:42:02,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:42:02,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 14:42:02,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 14:42:02,336 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2020-10-27 14:42:02,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:42:02,500 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2020-10-27 14:42:02,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 14:42:02,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-27 14:42:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:42:02,502 INFO L225 Difference]: With dead ends: 46 [2020-10-27 14:42:02,502 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 14:42:02,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 14:42:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 14:42:02,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 14:42:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 14:42:02,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-27 14:42:02,513 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-10-27 14:42:02,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:42:02,513 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-27 14:42:02,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 14:42:02,514 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-27 14:42:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 14:42:02,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:42:02,515 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] [2020-10-27 14:42:02,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 14:42:02,516 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:42:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:42:02,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2090381425, now seen corresponding path program 1 times [2020-10-27 14:42:02,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:42:02,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26737067] [2020-10-27 14:42:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:42:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 14:42:02,556 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 14:42:02,556 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 14:42:02,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 14:42:02,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:42:02 BoogieIcfgContainer [2020-10-27 14:42:02,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 14:42:02,603 INFO L168 Benchmark]: Toolchain (without parser) took 3757.19 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 130.9 MB in the beginning and 139.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 8.0 GB. [2020-10-27 14:42:02,604 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 156.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 14:42:02,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.27 ms. Allocated memory is still 156.2 MB. Free memory was 130.2 MB in the beginning and 120.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 14:42:02,610 INFO L168 Benchmark]: Boogie Preprocessor took 45.34 ms. Allocated memory is still 156.2 MB. Free memory was 120.4 MB in the beginning and 118.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 14:42:02,611 INFO L168 Benchmark]: RCFGBuilder took 462.97 ms. Allocated memory is still 156.2 MB. Free memory was 118.5 MB in the beginning and 101.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-27 14:42:02,611 INFO L168 Benchmark]: TraceAbstraction took 2832.36 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 101.5 MB in the beginning and 139.6 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 14:42:02,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 156.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 402.27 ms. Allocated memory is still 156.2 MB. Free memory was 130.2 MB in the beginning and 120.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.34 ms. Allocated memory is still 156.2 MB. Free memory was 120.4 MB in the beginning and 118.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 462.97 ms. Allocated memory is still 156.2 MB. Free memory was 118.5 MB in the beginning and 101.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2832.36 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 101.5 MB in the beginning and 139.6 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = N [L32] i=0 [L32] COND TRUE i