/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/brs1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:54:29,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:54:29,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:54:29,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:54:29,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:54:29,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:54:29,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:54:29,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:54:29,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:54:29,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:54:29,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:54:29,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:54:29,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:54:29,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:54:29,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:54:30,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:54:30,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:54:30,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:54:30,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:54:30,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:54:30,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:54:30,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:54:30,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:54:30,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:54:30,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:54:30,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:54:30,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:54:30,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:54:30,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:54:30,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:54:30,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:54:30,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:54:30,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:54:30,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:54:30,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:54:30,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:54:30,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:54:30,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:54:30,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:54:30,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:54:30,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:54:30,041 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 22:54:30,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:54:30,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:54:30,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:54:30,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:54:30,094 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:54:30,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:54:30,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:54:30,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:54:30,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:54:30,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:54:30,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:54:30,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:54:30,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:54:30,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:54:30,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:54:30,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:54:30,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:54:30,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:54:30,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:54:30,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:54:30,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:54:30,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:54:30,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:54:30,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:54:30,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:54:30,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:54:30,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:54:30,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:54:30,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:54:30,100 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:54:30,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:54:30,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:54:30,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:54:30,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:54:30,615 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:54:30,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs1f.c [2020-09-24 22:54:30,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f1839a0a/5658c0b0457842748a0cd4293546a969/FLAGd60dca544 [2020-09-24 22:54:31,200 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:54:31,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/brs1f.c [2020-09-24 22:54:31,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f1839a0a/5658c0b0457842748a0cd4293546a969/FLAGd60dca544 [2020-09-24 22:54:31,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f1839a0a/5658c0b0457842748a0cd4293546a969 [2020-09-24 22:54:31,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:54:31,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:54:31,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:54:31,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:54:31,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:54:31,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:31,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9ac829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31, skipping insertion in model container [2020-09-24 22:54:31,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:31,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:54:31,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:54:31,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:54:31,854 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:54:31,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:54:31,900 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:54:31,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31 WrapperNode [2020-09-24 22:54:31,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:54:31,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:54:31,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:54:31,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:54:31,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:31,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (1/1) ... [2020-09-24 22:54:32,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:54:32,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:54:32,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:54:32,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:54:32,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (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 22:54:32,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:54:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:54:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:54:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 22:54:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:54:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:54:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:54:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:54:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:54:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:54:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:54:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:54:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:54:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:54:32,487 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:54:32,488 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 22:54:32,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:54:32 BoogieIcfgContainer [2020-09-24 22:54:32,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:54:32,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:54:32,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:54:32,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:54:32,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:54:31" (1/3) ... [2020-09-24 22:54:32,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7d47a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:54:32, skipping insertion in model container [2020-09-24 22:54:32,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:54:31" (2/3) ... [2020-09-24 22:54:32,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7d47a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:54:32, skipping insertion in model container [2020-09-24 22:54:32,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:54:32" (3/3) ... [2020-09-24 22:54:32,512 INFO L109 eAbstractionObserver]: Analyzing ICFG brs1f.c [2020-09-24 22:54:32,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:54:32,532 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:54:32,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:54:32,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:54:32,586 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:54:32,586 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:54:32,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:54:32,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:54:32,586 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:54:32,586 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:54:32,586 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:54:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-09-24 22:54:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:54:32,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:54:32,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:54:32,618 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:54:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:54:32,625 INFO L82 PathProgramCache]: Analyzing trace with hash 221259408, now seen corresponding path program 1 times [2020-09-24 22:54:32,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:54:32,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683088820] [2020-09-24 22:54:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:54:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:32,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:33,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:33,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:54:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:54:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-24 22:54:33,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:54:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 22:54:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:54:33,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:54:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:54:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:33,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:33,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:33,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:54:33,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:54:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:54:33,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:33,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:54:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:54:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:54:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:54:33,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 22:54:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:33,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:33,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:33,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:54:33,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:54:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:54:33,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:54:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:54:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:54:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:54:33,418 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 22:54:33,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683088820] [2020-09-24 22:54:33,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:54:33,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:54:33,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429923859] [2020-09-24 22:54:33,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:54:33,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:54:33,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:54:33,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:54:33,450 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2020-09-24 22:54:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:54:33,601 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2020-09-24 22:54:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:54:33,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 22:54:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:54:33,615 INFO L225 Difference]: With dead ends: 100 [2020-09-24 22:54:33,615 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 22:54:33,620 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 22:54:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 22:54:33,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 22:54:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 22:54:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-09-24 22:54:33,673 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 30 [2020-09-24 22:54:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:54:33,674 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-09-24 22:54:33,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:54:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-09-24 22:54:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:54:33,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:54:33,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:54:33,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:54:33,676 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:54:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:54:33,677 INFO L82 PathProgramCache]: Analyzing trace with hash -151091841, now seen corresponding path program 1 times [2020-09-24 22:54:33,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:54:33,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715624621] [2020-09-24 22:54:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:54:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:34,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:34,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:54:34,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:54:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-24 22:54:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:54:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 22:54:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:54:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:54:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:54:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:34,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:34,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:54:34,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:54:34,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:54:34,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:34,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:54:34,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:54:34,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:54:34,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:54:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 22:54:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:54:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:54:34,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:54:34,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:54:34,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:54:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:54:34,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:54:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:54:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:54:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:54:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:54:34,193 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 22:54:34,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715624621] [2020-09-24 22:54:34,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:54:34,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:54:34,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592544426] [2020-09-24 22:54:34,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:54:34,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:54:34,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:54:34,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:54:34,202 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 5 states. [2020-09-24 22:54:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:54:34,393 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-09-24 22:54:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:54:34,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 22:54:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:54:34,395 INFO L225 Difference]: With dead ends: 66 [2020-09-24 22:54:34,395 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 22:54:34,396 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 22:54:34,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 22:54:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 22:54:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 22:54:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-09-24 22:54:34,406 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 30 [2020-09-24 22:54:34,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:54:34,406 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-09-24 22:54:34,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:54:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-09-24 22:54:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 22:54:34,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:54:34,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:54:34,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:54:34,409 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:54:34,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:54:34,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1707000309, now seen corresponding path program 1 times [2020-09-24 22:54:34,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:54:34,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179160638] [2020-09-24 22:54:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:54:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:54:34,434 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:54:34,434 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:54:34,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:54:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:54:34 BoogieIcfgContainer [2020-09-24 22:54:34,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:54:34,465 INFO L168 Benchmark]: Toolchain (without parser) took 2909.86 ms. Allocated memory was 142.1 MB in the beginning and 233.3 MB in the end (delta: 91.2 MB). Free memory was 105.3 MB in the beginning and 162.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:54:34,466 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:54:34,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.09 ms. Allocated memory is still 142.1 MB. Free memory was 104.6 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:54:34,468 INFO L168 Benchmark]: Boogie Preprocessor took 130.18 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 94.3 MB in the beginning and 181.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:54:34,469 INFO L168 Benchmark]: RCFGBuilder took 467.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.8 MB in the beginning and 162.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:54:34,470 INFO L168 Benchmark]: TraceAbstraction took 1960.05 ms. Allocated memory was 203.9 MB in the beginning and 233.3 MB in the end (delta: 29.4 MB). Free memory was 161.8 MB in the beginning and 162.3 MB in the end (delta: -487.3 kB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:54:34,473 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.09 ms. Allocated memory is still 142.1 MB. Free memory was 104.6 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.18 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 94.3 MB in the beginning and 181.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.8 MB in the beginning and 162.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1960.05 ms. Allocated memory was 203.9 MB in the beginning and 233.3 MB in the end (delta: 29.4 MB). Free memory was 161.8 MB in the beginning and 162.3 MB in the end (delta: -487.3 kB). Peak memory consumption was 28.9 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