/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/res2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:23,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:23,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:23,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:23,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:23,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:23,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:23,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:23,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:23,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:23,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:23,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:23,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:23,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:23,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:23,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:23,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:23,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:23,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:23,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:23,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:23,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:23,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:23,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:23,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:23,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:23,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:23,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:23,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:23,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:23,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:23,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:23,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:23,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:23,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:23,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:23,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:23,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:23,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:23,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:23,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:23,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:49:24,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:24,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:24,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:24,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:24,020 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:24,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:24,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:24,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:24,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:24,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:24,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:24,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:24,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:24,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:24,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:24,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:24,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:24,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:24,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:24,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:24,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:24,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:24,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:24,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:24,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:24,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:24,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:24,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:24,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:24,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:24,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:24,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:24,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:24,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:24,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:24,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2f.c [2020-09-24 21:49:24,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/091974dbd/cf7aa122fe63490cb1707ce20ebd2f7d/FLAGde5eb0b5c [2020-09-24 21:49:25,235 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:25,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2f.c [2020-09-24 21:49:25,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/091974dbd/cf7aa122fe63490cb1707ce20ebd2f7d/FLAGde5eb0b5c [2020-09-24 21:49:25,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/091974dbd/cf7aa122fe63490cb1707ce20ebd2f7d [2020-09-24 21:49:25,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:25,612 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:25,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:25,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:25,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:25,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4734e8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25, skipping insertion in model container [2020-09-24 21:49:25,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:25,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:25,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:25,911 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:25,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:25,956 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:25,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25 WrapperNode [2020-09-24 21:49:25,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:25,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:25,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:25,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:26,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:26,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:26,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:26,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:26,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:26,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:26,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:26,588 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 21:49:26,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:26 BoogieIcfgContainer [2020-09-24 21:49:26,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:26,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:26,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:26,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:26,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:25" (1/3) ... [2020-09-24 21:49:26,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eb34b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:26, skipping insertion in model container [2020-09-24 21:49:26,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (2/3) ... [2020-09-24 21:49:26,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eb34b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:26, skipping insertion in model container [2020-09-24 21:49:26,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:26" (3/3) ... [2020-09-24 21:49:26,604 INFO L109 eAbstractionObserver]: Analyzing ICFG res2f.c [2020-09-24 21:49:26,616 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:26,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:26,650 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:26,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:26,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:26,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:26,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:26,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:26,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:26,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:26,679 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-24 21:49:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 21:49:26,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:26,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:49:26,715 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 2093857558, now seen corresponding path program 1 times [2020-09-24 21:49:26,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:26,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983036501] [2020-09-24 21:49:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:26,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:28,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 21:49:28,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:49:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1339 [2020-09-24 21:49:28,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:49:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 21:49:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:49:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:28,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:49:28,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:28,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:28,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:28,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:49:28,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:49:28,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983036501] [2020-09-24 21:49:28,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:28,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:49:28,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399572947] [2020-09-24 21:49:28,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:49:28,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:28,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:49:28,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:49:28,540 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 8 states. [2020-09-24 21:49:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:29,094 INFO L93 Difference]: Finished difference Result 207 states and 245 transitions. [2020-09-24 21:49:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:49:29,097 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 21:49:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:29,111 INFO L225 Difference]: With dead ends: 207 [2020-09-24 21:49:29,111 INFO L226 Difference]: Without dead ends: 106 [2020-09-24 21:49:29,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:49:29,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-24 21:49:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 97. [2020-09-24 21:49:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-24 21:49:29,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2020-09-24 21:49:29,184 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 43 [2020-09-24 21:49:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:29,185 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2020-09-24 21:49:29,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:49:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2020-09-24 21:49:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 21:49:29,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:29,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:49:29,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:29,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:29,190 INFO L82 PathProgramCache]: Analyzing trace with hash 494627755, now seen corresponding path program 1 times [2020-09-24 21:49:29,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:29,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447402209] [2020-09-24 21:49:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:30,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:34,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 21:49:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 21:49:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:49:34,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:34,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:49:34,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:34,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:34,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:34,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:34,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:34,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:49:34,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:34,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:34,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:34,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:34,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:49:34,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:34,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:49:34,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447402209] [2020-09-24 21:49:34,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:34,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:34,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162791775] [2020-09-24 21:49:34,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:34,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:34,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:34,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:34,358 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 5 states. [2020-09-24 21:49:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:34,666 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2020-09-24 21:49:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:34,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-24 21:49:34,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:34,669 INFO L225 Difference]: With dead ends: 151 [2020-09-24 21:49:34,669 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 21:49:34,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:49:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 21:49:34,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-24 21:49:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 21:49:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-09-24 21:49:34,694 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 52 [2020-09-24 21:49:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:34,695 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-09-24 21:49:34,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-09-24 21:49:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 21:49:34,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:34,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:49:34,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:34,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:34,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1469726247, now seen corresponding path program 1 times [2020-09-24 21:49:34,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:34,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905760979] [2020-09-24 21:49:34,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:34,783 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:34,783 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:34,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:49:34,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:34 BoogieIcfgContainer [2020-09-24 21:49:34,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:34,832 INFO L168 Benchmark]: Toolchain (without parser) took 9220.61 ms. Allocated memory was 138.4 MB in the beginning and 292.6 MB in the end (delta: 154.1 MB). Free memory was 99.7 MB in the beginning and 180.8 MB in the end (delta: -81.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,834 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.43 ms. Allocated memory is still 138.4 MB. Free memory was 99.2 MB in the beginning and 88.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,836 INFO L168 Benchmark]: Boogie Preprocessor took 127.76 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 88.3 MB in the beginning and 177.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,837 INFO L168 Benchmark]: RCFGBuilder took 507.39 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 152.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,840 INFO L168 Benchmark]: TraceAbstraction took 8229.77 ms. Allocated memory was 199.8 MB in the beginning and 292.6 MB in the end (delta: 92.8 MB). Free memory was 152.6 MB in the beginning and 180.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:34,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.43 ms. Allocated memory is still 138.4 MB. Free memory was 99.2 MB in the beginning and 88.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.76 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 88.3 MB in the beginning and 177.1 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 507.39 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 152.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8229.77 ms. Allocated memory was 199.8 MB in the beginning and 292.6 MB in the end (delta: 92.8 MB). Free memory was 152.6 MB in the beginning and 180.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L28] int *b = malloc(sizeof(int)*N); [L29] int *c = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 [L32] COND TRUE i