/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/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:11:24,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:11:24,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:11:24,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:11:24,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:11:24,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:11:24,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:11:24,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:11:24,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:11:24,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:11:24,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:11:24,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:11:24,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:11:24,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:11:24,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:11:24,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:11:24,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:11:24,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:11:24,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:11:24,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:11:24,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:11:24,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:11:24,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:11:24,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:11:24,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:11:24,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:11:24,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:11:24,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:11:24,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:11:24,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:11:24,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:11:24,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:11:24,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:11:24,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:11:24,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:11:24,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:11:24,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:11:24,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:11:24,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:11:24,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:11:24,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:11:24,978 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 10:11:25,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:11:25,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:11:25,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:11:25,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:11:25,018 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:11:25,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:11:25,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:11:25,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:11:25,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:11:25,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:11:25,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:11:25,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:11:25,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:11:25,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:11:25,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:11:25,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:11:25,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:11:25,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:11:25,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:11:25,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:11:25,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:11:25,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:11:25,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:11:25,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:11:25,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:11:25,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:11:25,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:11:25,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:11:25,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:11:25,024 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 10:11:25,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:11:25,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:11:25,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:11:25,342 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:11:25,342 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:11:25,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-10-12 10:11:25,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/064e14c97/661731f78b164161997c11933bc50da1/FLAG420b597a1 [2020-10-12 10:11:25,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:11:25,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5f.c [2020-10-12 10:11:25,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/064e14c97/661731f78b164161997c11933bc50da1/FLAG420b597a1 [2020-10-12 10:11:26,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/064e14c97/661731f78b164161997c11933bc50da1 [2020-10-12 10:11:26,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:11:26,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:11:26,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:11:26,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:11:26,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:11:26,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e6d6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26, skipping insertion in model container [2020-10-12 10:11:26,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:11:26,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:11:26,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:11:26,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:11:26,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:11:26,623 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:11:26,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26 WrapperNode [2020-10-12 10:11:26,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:11:26,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:11:26,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:11:26,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:11:26,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (1/1) ... [2020-10-12 10:11:26,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:11:26,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:11:26,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:11:26,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:11:26,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (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 10:11:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:11:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:11:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:11:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:11:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:11:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:11:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:11:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:11:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:11:27,097 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:11:27,098 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 10:11:27,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:11:27 BoogieIcfgContainer [2020-10-12 10:11:27,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:11:27,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:11:27,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:11:27,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:11:27,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:11:26" (1/3) ... [2020-10-12 10:11:27,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a9cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:11:27, skipping insertion in model container [2020-10-12 10:11:27,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:11:26" (2/3) ... [2020-10-12 10:11:27,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a9cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:11:27, skipping insertion in model container [2020-10-12 10:11:27,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:11:27" (3/3) ... [2020-10-12 10:11:27,111 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-10-12 10:11:27,122 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:11:27,130 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:11:27,145 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:11:27,170 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:11:27,170 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:11:27,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:11:27,171 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:11:27,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:11:27,171 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:11:27,171 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:11:27,171 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:11:27,190 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-12 10:11:27,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 10:11:27,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:11:27,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:11:27,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:11:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:11:27,205 INFO L82 PathProgramCache]: Analyzing trace with hash -976607933, now seen corresponding path program 1 times [2020-10-12 10:11:27,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:11:27,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249050386] [2020-10-12 10:11:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:11:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:27,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:27,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:28,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:28,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 10:11:28,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 10:11:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-12 10:11:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 10:11:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:11:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:11:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:11:28,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:11:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:28,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:28,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:11:28,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:11:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:11:28,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:11:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:11:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:11:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:11:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 10:11:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:11:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:11:28,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:11:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:11:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:11:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:11:28,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:11:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:11:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:11:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:11:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:11:28,577 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 10:11:28,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249050386] [2020-10-12 10:11:28,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:11:28,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 10:11:28,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115983150] [2020-10-12 10:11:28,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 10:11:28,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:11:28,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 10:11:28,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 10:11:28,605 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-10-12 10:11:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:11:28,869 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2020-10-12 10:11:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 10:11:28,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 10:11:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:11:28,884 INFO L225 Difference]: With dead ends: 84 [2020-10-12 10:11:28,884 INFO L226 Difference]: Without dead ends: 43 [2020-10-12 10:11:28,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:11:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-12 10:11:28,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-10-12 10:11:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-12 10:11:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-12 10:11:28,946 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2020-10-12 10:11:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:11:28,947 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-12 10:11:28,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 10:11:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-12 10:11:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 10:11:28,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:11:28,952 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] [2020-10-12 10:11:28,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:11:28,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:11:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:11:28,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1064141225, now seen corresponding path program 1 times [2020-10-12 10:11:28,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:11:28,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988790229] [2020-10-12 10:11:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:11:28,979 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:11:28,979 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:11:28,979 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:11:28,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:11:29,013 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:11:29,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:11:29 BoogieIcfgContainer [2020-10-12 10:11:29,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:11:29,017 INFO L168 Benchmark]: Toolchain (without parser) took 2756.76 ms. Allocated memory was 141.6 MB in the beginning and 232.3 MB in the end (delta: 90.7 MB). Free memory was 104.9 MB in the beginning and 148.2 MB in the end (delta: -43.3 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,020 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.84 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.7 MB in the beginning and 183.4 MB in the end (delta: -78.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,023 INFO L168 Benchmark]: Boogie Preprocessor took 44.61 ms. Allocated memory is still 204.5 MB. Free memory was 183.4 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,024 INFO L168 Benchmark]: RCFGBuilder took 432.24 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 162.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,034 INFO L168 Benchmark]: TraceAbstraction took 1909.98 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 161.9 MB in the beginning and 148.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:11:29,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.84 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.7 MB in the beginning and 183.4 MB in the end (delta: -78.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.61 ms. Allocated memory is still 204.5 MB. Free memory was 183.4 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.24 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 162.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1909.98 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 161.9 MB in the beginning and 148.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 41.5 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); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i