/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=BIGGEST --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/indp2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:11:19,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:11:19,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:11:19,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:11:19,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:11:19,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:11:19,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:11:19,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:11:19,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:11:19,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:11:19,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:11:19,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:11:19,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:11:19,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:11:19,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:11:19,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:11:19,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:11:19,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:11:19,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:11:19,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:11:19,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:11:19,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:11:19,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:11:19,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:11:19,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:11:19,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:11:19,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:11:19,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:11:19,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:11:19,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:11:19,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:11:19,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:11:19,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:11:19,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:11:19,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:11:19,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:11:19,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:11:19,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:11:19,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:11:19,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:11:19,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:11:19,998 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 [2020-10-12 10:11:20,020 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:11:20,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:11:20,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:11:20,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:11:20,022 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:11:20,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:11:20,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:11:20,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:11:20,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:11:20,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:11:20,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:11:20,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:11:20,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:11:20,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:11:20,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:11:20,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:11:20,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:11:20,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:11:20,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:11:20,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:11:20,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:11:20,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:11:20,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:11:20,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:11:20,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:11:20,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:11:20,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:11:20,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:11:20,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:11:20,026 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:11:20,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:11:20,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:11:20,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:11:20,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:11:20,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:11:20,393 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp2f.c [2020-10-12 10:11:20,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c3ac8c7/31ace6403ba74f4c9c333216bf8e032a/FLAG709d26234 [2020-10-12 10:11:20,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:11:20,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp2f.c [2020-10-12 10:11:20,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c3ac8c7/31ace6403ba74f4c9c333216bf8e032a/FLAG709d26234 [2020-10-12 10:11:21,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c3ac8c7/31ace6403ba74f4c9c333216bf8e032a [2020-10-12 10:11:21,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:11:21,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:11:21,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:11:21,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:11:21,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:11:21,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6171eb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21, skipping insertion in model container [2020-10-12 10:11:21,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:11:21,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:11:21,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:11:21,594 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:11:21,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:11:21,632 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:11:21,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21 WrapperNode [2020-10-12 10:11:21,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:11:21,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:11:21,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:11:21,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:11:21,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (1/1) ... [2020-10-12 10:11:21,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:11:21,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:11:21,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:11:21,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:11:21,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (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 [2020-10-12 10:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:11:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:11:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:11:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:11:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:11:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:11:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 10:11:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:11:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 10:11:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:11:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:11:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:11:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:11:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:11:22,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:11:22,110 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-12 10:11:22,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:11:22 BoogieIcfgContainer [2020-10-12 10:11:22,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:11:22,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:11:22,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:11:22,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:11:22,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:11:21" (1/3) ... [2020-10-12 10:11:22,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ccff83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:11:22, skipping insertion in model container [2020-10-12 10:11:22,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:21" (2/3) ... [2020-10-12 10:11:22,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ccff83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:11:22, skipping insertion in model container [2020-10-12 10:11:22,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:11:22" (3/3) ... [2020-10-12 10:11:22,124 INFO L109 eAbstractionObserver]: Analyzing ICFG indp2f.c [2020-10-12 10:11:22,137 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:11:22,146 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:11:22,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:11:22,192 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:11:22,192 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:11:22,192 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:11:22,192 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:11:22,192 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:11:22,193 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:11:22,193 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:11:22,193 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:11:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-12 10:11:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-12 10:11:22,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:11:22,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:11:22,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:11:22,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:11:22,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-10-12 10:11:22,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:11:22,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776107745] [2020-10-12 10:11:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:11:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:22,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:23,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 10:11:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-10-12 10:11:23,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:11:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 10:11:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:11:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:11:23,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:11:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:23,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:23,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:11:23,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:11:23,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:11:23,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:11:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:11:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:11:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:11:23,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 10:11:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:23,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:23,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:11:23,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:11:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:11:23,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:11:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 10:11:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:11:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:11:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:11:23,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776107745] [2020-10-12 10:11:23,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:11:23,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 10:11:23,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255096444] [2020-10-12 10:11:23,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 10:11:23,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:11:23,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 10:11:23,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:11:23,605 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 6 states. [2020-10-12 10:11:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:11:23,876 INFO L93 Difference]: Finished difference Result 87 states and 121 transitions. [2020-10-12 10:11:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 10:11:23,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-12 10:11:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:11:23,889 INFO L225 Difference]: With dead ends: 87 [2020-10-12 10:11:23,890 INFO L226 Difference]: Without dead ends: 42 [2020-10-12 10:11:23,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:11:23,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-12 10:11:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-10-12 10:11:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-12 10:11:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-12 10:11:23,945 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-10-12 10:11:23,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:11:23,945 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-12 10:11:23,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 10:11:23,946 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-12 10:11:23,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 10:11:23,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:11:23,947 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] [2020-10-12 10:11:23,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:11:23,948 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:11:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:11:23,948 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-10-12 10:11:23,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:11:23,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578673622] [2020-10-12 10:11:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:11:23,962 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:11:23,962 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:11:23,962 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:11:23,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:11:23,993 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:11:23,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:11:23 BoogieIcfgContainer [2020-10-12 10:11:23,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:11:23,999 INFO L168 Benchmark]: Toolchain (without parser) took 2642.03 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 102.3 MB in the beginning and 157.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,002 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.96 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 91.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,006 INFO L168 Benchmark]: Boogie Preprocessor took 126.01 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 91.8 MB in the beginning and 179.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,007 INFO L168 Benchmark]: RCFGBuilder took 356.00 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 161.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,016 INFO L168 Benchmark]: TraceAbstraction took 1878.55 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 161.7 MB in the beginning and 157.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:24,027 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.96 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 91.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.01 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 91.8 MB in the beginning and 179.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.00 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 161.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1878.55 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 161.7 MB in the beginning and 157.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible 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 *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND TRUE i