/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:32:11,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:32:11,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:32:11,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:32:11,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:32:11,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:32:11,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:32:11,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:32:11,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:32:11,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:32:11,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:32:11,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:32:11,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:32:11,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:32:11,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:32:11,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:32:11,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:32:11,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:32:11,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:32:11,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:32:11,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:32:11,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:32:11,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:32:11,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:32:11,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:32:11,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:32:11,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:32:11,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:32:11,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:32:11,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:32:11,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:32:11,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:32:11,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:32:11,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:32:11,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:32:11,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:32:11,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:32:11,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:32:11,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:32:11,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:32:11,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:32:11,620 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 [2020-08-22 01:32:11,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:32:11,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:32:11,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:32:11,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:32:11,650 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:32:11,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:32:11,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:32:11,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:32:11,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:32:11,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:32:11,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:32:11,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:32:11,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:32:11,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:32:11,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:32:11,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:32:11,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:32:11,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:32:11,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:32:11,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:32:11,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:32:11,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:32:11,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:32:11,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:32:11,655 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:32:11,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:32:11,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:32:11,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:32:11,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:32:11,998 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:32:11,999 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-08-22 01:32:12,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28a70e301/139f88f4e9b14785859be9eb51eff89c/FLAG20fb1ce0b [2020-08-22 01:32:12,549 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:32:12,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5f.c [2020-08-22 01:32:12,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28a70e301/139f88f4e9b14785859be9eb51eff89c/FLAG20fb1ce0b [2020-08-22 01:32:12,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28a70e301/139f88f4e9b14785859be9eb51eff89c [2020-08-22 01:32:12,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:32:12,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:32:12,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:32:12,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:32:12,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:32:12,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:32:12" (1/1) ... [2020-08-22 01:32:12,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5550de01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:12, skipping insertion in model container [2020-08-22 01:32:12,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:32:12" (1/1) ... [2020-08-22 01:32:12,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:32:12,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:32:13,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:32:13,138 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:32:13,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:32:13,181 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:32:13,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13 WrapperNode [2020-08-22 01:32:13,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:32:13,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:32:13,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:32:13,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:32:13,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (1/1) ... [2020-08-22 01:32:13,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:32:13,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:32:13,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:32:13,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:32:13,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (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 [2020-08-22 01:32:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:32:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:32:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 01:32:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 01:32:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:32:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:32:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 01:32:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 01:32:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:32:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:32:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:32:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:32:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:32:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:32:13,683 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:32:13,684 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 01:32:13,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:32:13 BoogieIcfgContainer [2020-08-22 01:32:13,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:32:13,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:32:13,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:32:13,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:32:13,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:32:12" (1/3) ... [2020-08-22 01:32:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473b1d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:32:13, skipping insertion in model container [2020-08-22 01:32:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:13" (2/3) ... [2020-08-22 01:32:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473b1d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:32:13, skipping insertion in model container [2020-08-22 01:32:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:32:13" (3/3) ... [2020-08-22 01:32:13,699 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-08-22 01:32:13,731 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:32:13,754 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:32:13,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:32:13,829 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:32:13,829 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:32:13,829 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:32:13,829 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:32:13,830 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:32:13,830 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:32:13,830 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:32:13,830 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:32:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-22 01:32:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 01:32:13,856 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:13,857 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] [2020-08-22 01:32:13,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:13,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash -976607933, now seen corresponding path program 1 times [2020-08-22 01:32:13,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:13,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157626754] [2020-08-22 01:32:13,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 01:32:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:14,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157626754] [2020-08-22 01:32:14,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:14,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:32:14,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505909195] [2020-08-22 01:32:14,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:32:14,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:14,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:32:14,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:32:14,105 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-08-22 01:32:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:14,253 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-08-22 01:32:14,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:32:14,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-08-22 01:32:14,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:14,266 INFO L225 Difference]: With dead ends: 70 [2020-08-22 01:32:14,267 INFO L226 Difference]: Without dead ends: 33 [2020-08-22 01:32:14,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:32:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-22 01:32:14,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-22 01:32:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-22 01:32:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-22 01:32:14,319 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 27 [2020-08-22 01:32:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:14,320 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-22 01:32:14,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:32:14,321 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-22 01:32:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 01:32:14,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:14,322 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] [2020-08-22 01:32:14,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:32:14,323 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:14,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:14,324 INFO L82 PathProgramCache]: Analyzing trace with hash -714487667, now seen corresponding path program 1 times [2020-08-22 01:32:14,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:14,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119503180] [2020-08-22 01:32:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 01:32:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:14,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119503180] [2020-08-22 01:32:14,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:14,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 01:32:14,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918464712] [2020-08-22 01:32:14,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 01:32:14,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:14,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 01:32:14,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 01:32:14,460 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-22 01:32:14,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:14,633 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-08-22 01:32:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:32:14,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-08-22 01:32:14,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:14,635 INFO L225 Difference]: With dead ends: 61 [2020-08-22 01:32:14,636 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 01:32:14,637 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 [2020-08-22 01:32:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 01:32:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-08-22 01:32:14,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-22 01:32:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-08-22 01:32:14,648 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2020-08-22 01:32:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:14,649 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-08-22 01:32:14,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 01:32:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-08-22 01:32:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 01:32:14,650 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:14,651 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] [2020-08-22 01:32:14,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:32:14,651 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:14,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:14,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1064141225, now seen corresponding path program 1 times [2020-08-22 01:32:14,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:14,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462179510] [2020-08-22 01:32:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:14,671 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-22 01:32:14,672 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-22 01:32:14,672 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 01:32:14,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:32:14,698 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-22 01:32:14,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:32:14 BoogieIcfgContainer [2020-08-22 01:32:14,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:32:14,702 INFO L168 Benchmark]: Toolchain (without parser) took 1780.25 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 98.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,703 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.48 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 89.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,705 INFO L168 Benchmark]: Boogie Preprocessor took 143.25 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 89.8 MB in the beginning and 177.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,706 INFO L168 Benchmark]: RCFGBuilder took 360.06 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 158.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,707 INFO L168 Benchmark]: TraceAbstraction took 1008.24 ms. Allocated memory is still 199.8 MB. Free memory was 157.4 MB in the beginning and 98.2 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:14,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.48 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 89.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.25 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 89.8 MB in the beginning and 177.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.06 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 158.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1008.24 ms. Allocated memory is still 199.8 MB. Free memory was 157.4 MB in the beginning and 98.2 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 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