/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-patterns/array4_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:13,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:13,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:13,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:13,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:13,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:13,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:13,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:13,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:13,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:13,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:13,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:13,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:13,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:13,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:13,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:13,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:13,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:13,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:13,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:13,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:13,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:13,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:13,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:13,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:13,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:13,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:13,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:13,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:13,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:13,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:13,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:13,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:13,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:13,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:13,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:13,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:13,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:13,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:13,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:13,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:13,381 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 10:24:13,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:13,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:13,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:13,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:13,442 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:13,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:13,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:13,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:13,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:13,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:13,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:13,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:13,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:13,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:13,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:13,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:13,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:13,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:13,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:13,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:13,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:13,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:13,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:13,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:13,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:13,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:13,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:13,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:13,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:13,450 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 10:24:13,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:13,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:13,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:13,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:13,869 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:13,870 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array4_pattern.c [2020-10-12 10:24:13,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab71aa6d/6f5a550a2826409eaa9329f5ca6a4eb3/FLAGfa23533e8 [2020-10-12 10:24:14,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:14,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array4_pattern.c [2020-10-12 10:24:14,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab71aa6d/6f5a550a2826409eaa9329f5ca6a4eb3/FLAGfa23533e8 [2020-10-12 10:24:14,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab71aa6d/6f5a550a2826409eaa9329f5ca6a4eb3 [2020-10-12 10:24:14,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:14,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:14,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:14,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:14,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:14,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:14" (1/1) ... [2020-10-12 10:24:14,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66097b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:14, skipping insertion in model container [2020-10-12 10:24:14,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:14" (1/1) ... [2020-10-12 10:24:14,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:14,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:15,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:15,138 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:15,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:15,193 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:15,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15 WrapperNode [2020-10-12 10:24:15,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:15,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:15,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:15,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:15,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:15,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:15,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:15,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:15,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (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 10:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-12 10:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:15,921 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:15,922 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 10:24:15,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:15 BoogieIcfgContainer [2020-10-12 10:24:15,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:15,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:15,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:15,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:15,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:14" (1/3) ... [2020-10-12 10:24:15,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7faaf60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:15, skipping insertion in model container [2020-10-12 10:24:15,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (2/3) ... [2020-10-12 10:24:15,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7faaf60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:15, skipping insertion in model container [2020-10-12 10:24:15,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:15" (3/3) ... [2020-10-12 10:24:15,939 INFO L109 eAbstractionObserver]: Analyzing ICFG array4_pattern.c [2020-10-12 10:24:15,952 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:15,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:15,979 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:16,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:16,006 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:16,006 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:16,006 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:16,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:16,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:16,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:16,007 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-12 10:24:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 10:24:16,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:16,041 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] [2020-10-12 10:24:16,041 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:16,050 INFO L82 PathProgramCache]: Analyzing trace with hash -2119330486, now seen corresponding path program 1 times [2020-10-12 10:24:16,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:16,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521685116] [2020-10-12 10:24:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 10:24:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:24:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-12 10:24:16,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 10:24:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 10:24:16,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:24:16,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:16,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:16,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:16,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:16,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:16,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:16,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 10:24:16,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:16,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:16,894 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 10:24:16,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521685116] [2020-10-12 10:24:16,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:16,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 10:24:16,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487324456] [2020-10-12 10:24:16,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 10:24:16,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:16,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 10:24:16,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:24:16,931 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 6 states. [2020-10-12 10:24:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:17,228 INFO L93 Difference]: Finished difference Result 84 states and 119 transitions. [2020-10-12 10:24:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 10:24:17,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-12 10:24:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:17,244 INFO L225 Difference]: With dead ends: 84 [2020-10-12 10:24:17,244 INFO L226 Difference]: Without dead ends: 35 [2020-10-12 10:24:17,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:24:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-12 10:24:17,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-12 10:24:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-12 10:24:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-10-12 10:24:17,315 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 21 [2020-10-12 10:24:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:17,316 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-10-12 10:24:17,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 10:24:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-10-12 10:24:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 10:24:17,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:17,321 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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 10:24:17,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:17,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:17,322 INFO L82 PathProgramCache]: Analyzing trace with hash 332366189, now seen corresponding path program 1 times [2020-10-12 10:24:17,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:17,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636907697] [2020-10-12 10:24:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:17,362 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:24:17,363 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:24:17,363 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:24:17,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:17,407 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:24:17,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:24:17 BoogieIcfgContainer [2020-10-12 10:24:17,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:24:17,415 INFO L168 Benchmark]: Toolchain (without parser) took 2581.92 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 87.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,418 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 143.7 MB. Free memory was 118.3 MB in the beginning and 117.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.51 ms. Allocated memory is still 143.7 MB. Free memory was 99.8 MB in the beginning and 89.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,421 INFO L168 Benchmark]: Boogie Preprocessor took 189.73 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 89.1 MB in the beginning and 178.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,422 INFO L168 Benchmark]: RCFGBuilder took 543.07 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 159.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,425 INFO L168 Benchmark]: TraceAbstraction took 1479.56 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 87.0 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:17,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 143.7 MB. Free memory was 118.3 MB in the beginning and 117.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.51 ms. Allocated memory is still 143.7 MB. Free memory was 99.8 MB in the beginning and 89.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 189.73 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 89.1 MB in the beginning and 178.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 543.07 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 159.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1479.56 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 87.0 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 38]: 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: [L42] signed long long ARR_SIZE ; [L46] ARR_SIZE = __VERIFIER_nondet_short() [L47] CALL assume_abort_if_not(ARR_SIZE > 0) [L36] COND FALSE !(!cond) [L47] RET assume_abort_if_not(ARR_SIZE > 0) [L49] int array1[ARR_SIZE] ; [L50] int array2[ARR_SIZE] ; [L51] int count = 0, num = -1 ; [L52] signed long long sum = 0 ; [L53] int temp ; [L54] short index1,index2 ; [L56] count=0 [L56] COND FALSE !(count=0 && index1 < ARR_SIZE) [L36] COND FALSE !(!cond) [L69] RET assume_abort_if_not(index1>=0 && index1 < ARR_SIZE) [L70] CALL assume_abort_if_not(index2>=0 && index2 < ARR_SIZE) [L36] COND FALSE !(!cond) [L70] RET assume_abort_if_not(index2>=0 && index2 < ARR_SIZE) [L71] EXPR array1[index1] [L71] CALL assume_abort_if_not(array1[index1] == 0) [L36] COND FALSE !(!cond) [L71] RET assume_abort_if_not(array1[index1] == 0) [L72] EXPR array2[index2] [L72] CALL assume_abort_if_not(array2[index2] == 0) [L36] COND FALSE !(!cond) [L72] RET assume_abort_if_not(array2[index2] == 0) [L74] array1[index1] = num * (num * count) [L75] array2[index2] = num * count [L76] COND TRUE count == 200 [L77] count = 0 [L78] count++ [L80] temp = __VERIFIER_nondet_int() [L81] COND TRUE temp == 0 [L84] count=0 [L84] COND TRUE count