/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 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=NARROWEST --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 -i ../../../trunk/examples/svcomp/array-fpi/brs1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:02:42,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:02:42,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:02:42,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:02:42,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:02:42,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:02:42,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:02:42,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:02:42,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:02:42,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:02:42,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:02:42,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:02:42,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:02:42,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:02:42,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:02:42,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:02:42,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:02:42,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:02:42,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:02:42,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:02:42,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:02:42,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:02:42,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:02:42,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:02:42,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:02:42,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:02:42,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:02:42,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:02:42,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:02:42,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:02:42,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:02:42,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:02:42,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:02:42,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:02:42,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:02:42,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:02:42,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:02:42,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:02:42,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:02:42,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:02:42,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:02:42,997 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 [2020-10-13 05:02:43,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:02:43,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:02:43,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:02:43,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:02:43,043 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:02:43,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:02:43,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:02:43,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:02:43,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:02:43,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:02:43,045 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:02:43,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:02:43,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:02:43,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:02:43,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:02:43,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:02:43,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:02:43,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:02:43,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:02:43,050 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 -> 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:02:43,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:02:43,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:02:43,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:02:43,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:02:43,390 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:02:43,390 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs1f.c [2020-10-13 05:02:43,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d2c7cd9/9c9f6e0ea5e644f9be53f0bf3c7c3ce5/FLAG3552c4e88 [2020-10-13 05:02:43,917 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:02:43,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs1f.c [2020-10-13 05:02:43,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d2c7cd9/9c9f6e0ea5e644f9be53f0bf3c7c3ce5/FLAG3552c4e88 [2020-10-13 05:02:44,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d2c7cd9/9c9f6e0ea5e644f9be53f0bf3c7c3ce5 [2020-10-13 05:02:44,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:02:44,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:02:44,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:02:44,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:02:44,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:02:44,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2a8928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44, skipping insertion in model container [2020-10-13 05:02:44,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:02:44,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:02:44,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:02:44,565 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:02:44,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:02:44,676 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:02:44,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44 WrapperNode [2020-10-13 05:02:44,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:02:44,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:02:44,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:02:44,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:02:44,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (1/1) ... [2020-10-13 05:02:44,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:02:44,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:02:44,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:02:44,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:02:44,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (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 [2020-10-13 05:02:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:02:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:02:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 05:02:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:02:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:02:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:02:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 05:02:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 05:02:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 05:02:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:02:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:02:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:02:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:02:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:02:45,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:02:45,073 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 05:02:45,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:02:45 BoogieIcfgContainer [2020-10-13 05:02:45,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:02:45,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:02:45,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:02:45,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:02:45,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:02:44" (1/3) ... [2020-10-13 05:02:45,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324f0c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:02:45, skipping insertion in model container [2020-10-13 05:02:45,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:02:44" (2/3) ... [2020-10-13 05:02:45,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324f0c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:02:45, skipping insertion in model container [2020-10-13 05:02:45,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:02:45" (3/3) ... [2020-10-13 05:02:45,099 INFO L109 eAbstractionObserver]: Analyzing ICFG brs1f.c [2020-10-13 05:02:45,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:02:45,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:02:45,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:02:45,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:02:45,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:02:45,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:02:45,163 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:02:45,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:02:45,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:02:45,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:02:45,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:02:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 05:02:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:02:45,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:02:45,191 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] [2020-10-13 05:02:45,192 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:02:45,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:02:45,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1824292310, now seen corresponding path program 1 times [2020-10-13 05:02:45,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:02:45,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141762204] [2020-10-13 05:02:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:02:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:45,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:45,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:45,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:02:45,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:02:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-13 05:02:45,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:02:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 05:02:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:02:45,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:02:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:02:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:45,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:45,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:02:45,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:02:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:02:45,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:02:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:02:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:02:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:02:45,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:02:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:45,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:45,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:02:45,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:02:45,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:02:45,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:02:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 05:02:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:02:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:02:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:02:45,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141762204] [2020-10-13 05:02:45,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:02:45,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:02:45,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191690957] [2020-10-13 05:02:45,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:02:45,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:02:45,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:02:45,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:02:45,838 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-10-13 05:02:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:02:45,971 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-13 05:02:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:02:45,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-13 05:02:45,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:02:45,989 INFO L225 Difference]: With dead ends: 56 [2020-10-13 05:02:45,989 INFO L226 Difference]: Without dead ends: 26 [2020-10-13 05:02:45,994 INFO L675 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 [2020-10-13 05:02:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-13 05:02:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-13 05:02:46,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-13 05:02:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-13 05:02:46,051 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 21 [2020-10-13 05:02:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:02:46,052 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-13 05:02:46,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:02:46,052 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-13 05:02:46,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:02:46,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:02:46,055 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] [2020-10-13 05:02:46,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:02:46,055 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:02:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:02:46,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1767537087, now seen corresponding path program 1 times [2020-10-13 05:02:46,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:02:46,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990716715] [2020-10-13 05:02:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:02:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:46,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:46,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:46,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:02:46,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:02:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-13 05:02:46,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 05:02:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:02:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 05:02:46,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:02:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:02:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:46,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:46,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:46,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:02:46,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:02:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:02:46,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:02:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:02:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:02:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:02:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:02:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:02:46,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:02:46,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:02:46,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:02:46,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:02:46,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:02:46,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:02:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:02:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:02:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:02:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:02:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:02:46,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990716715] [2020-10-13 05:02:46,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:02:46,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 05:02:46,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791368205] [2020-10-13 05:02:46,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 05:02:46,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:02:46,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 05:02:46,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 05:02:46,431 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 5 states. [2020-10-13 05:02:46,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:02:46,545 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-10-13 05:02:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 05:02:46,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-13 05:02:46,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:02:46,547 INFO L225 Difference]: With dead ends: 38 [2020-10-13 05:02:46,548 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 05:02:46,549 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 [2020-10-13 05:02:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 05:02:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-13 05:02:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 05:02:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-13 05:02:46,556 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-10-13 05:02:46,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:02:46,557 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-13 05:02:46,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 05:02:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-13 05:02:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 05:02:46,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:02:46,558 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] [2020-10-13 05:02:46,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:02:46,559 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:02:46,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:02:46,559 INFO L82 PathProgramCache]: Analyzing trace with hash -395878216, now seen corresponding path program 1 times [2020-10-13 05:02:46,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:02:46,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643135813] [2020-10-13 05:02:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:02:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 05:02:46,579 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 05:02:46,579 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:02:46,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:02:46,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:02:46 BoogieIcfgContainer [2020-10-13 05:02:46,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:02:46,604 INFO L168 Benchmark]: Toolchain (without parser) took 2286.78 ms. Allocated memory was 140.5 MB in the beginning and 235.4 MB in the end (delta: 94.9 MB). Free memory was 103.3 MB in the beginning and 180.6 MB in the end (delta: -77.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,605 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.86 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.1 MB in the beginning and 181.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,607 INFO L168 Benchmark]: Boogie Preprocessor took 40.24 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 179.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,608 INFO L168 Benchmark]: RCFGBuilder took 358.83 ms. Allocated memory is still 202.9 MB. Free memory was 179.5 MB in the beginning and 162.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,609 INFO L168 Benchmark]: TraceAbstraction took 1522.44 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 162.3 MB in the beginning and 180.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:02:46,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.86 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.1 MB in the beginning and 181.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.24 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 179.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.83 ms. Allocated memory is still 202.9 MB. Free memory was 179.5 MB in the beginning and 162.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1522.44 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 162.3 MB in the beginning and 180.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 14.2 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