/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/array9_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:17,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:17,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:17,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:17,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:17,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:17,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:17,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:17,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:17,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:17,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:17,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:17,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:17,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:17,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:17,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:17,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:17,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:17,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:17,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:17,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:17,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:17,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:17,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:17,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:17,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:17,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:17,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:17,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:17,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:17,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:17,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:17,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:17,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:17,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:17,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:17,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:17,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:17,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:17,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:17,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:17,549 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 10:24:17,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:17,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:17,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:17,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:17,591 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:17,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:17,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:17,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:17,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:17,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:17,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:17,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:17,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:17,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:17,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:17,595 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:17,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:17,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:17,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:17,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:17,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:17,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:17,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:17,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:17,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:17,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:17,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:17,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:17,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:17,598 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 10:24:17,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:17,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:17,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:17,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:17,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:17,961 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array9_pattern.c [2020-10-12 10:24:18,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/224bf9ee3/badcc4981a954311b337060cc8841314/FLAG04ca43c25 [2020-10-12 10:24:18,490 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:18,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array9_pattern.c [2020-10-12 10:24:18,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/224bf9ee3/badcc4981a954311b337060cc8841314/FLAG04ca43c25 [2020-10-12 10:24:18,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/224bf9ee3/badcc4981a954311b337060cc8841314 [2020-10-12 10:24:18,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:18,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:18,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:18,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:18,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:18,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:18" (1/1) ... [2020-10-12 10:24:18,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc1a58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:18, skipping insertion in model container [2020-10-12 10:24:18,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:18" (1/1) ... [2020-10-12 10:24:18,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:18,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:19,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:19,065 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:19,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:19,246 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:19,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19 WrapperNode [2020-10-12 10:24:19,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:19,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:19,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:19,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:19,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (1/1) ... [2020-10-12 10:24:19,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:19,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:19,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:19,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:19,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (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 10:24:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:24:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:24:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:24:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:19,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:19,660 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 10:24:19,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:19 BoogieIcfgContainer [2020-10-12 10:24:19,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:19,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:19,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:19,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:19,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:18" (1/3) ... [2020-10-12 10:24:19,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6043c8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:19, skipping insertion in model container [2020-10-12 10:24:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:19" (2/3) ... [2020-10-12 10:24:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6043c8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:19, skipping insertion in model container [2020-10-12 10:24:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:19" (3/3) ... [2020-10-12 10:24:19,674 INFO L109 eAbstractionObserver]: Analyzing ICFG array9_pattern.c [2020-10-12 10:24:19,686 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:19,712 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:19,755 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:19,804 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:19,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:19,804 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:19,805 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:19,805 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:19,805 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:19,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:19,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-12 10:24:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 10:24:19,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:19,845 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 10:24:19,845 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash -945511344, now seen corresponding path program 1 times [2020-10-12 10:24:19,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:19,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108050310] [2020-10-12 10:24:19,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:19,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:20,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 10:24:20,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-12 10:24:20,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 10:24:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:24:20,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:20,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:20,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:20,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:20,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:20,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:20,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:20,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:20,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:20,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:20,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:20,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:20,300 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 10:24:20,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108050310] [2020-10-12 10:24:20,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:20,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:24:20,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220098757] [2020-10-12 10:24:20,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:24:20,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:20,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:24:20,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:24:20,330 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-10-12 10:24:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:20,465 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2020-10-12 10:24:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:24:20,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-12 10:24:20,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:20,485 INFO L225 Difference]: With dead ends: 65 [2020-10-12 10:24:20,486 INFO L226 Difference]: Without dead ends: 29 [2020-10-12 10:24:20,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:24:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-12 10:24:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-12 10:24:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-12 10:24:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-10-12 10:24:20,540 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 21 [2020-10-12 10:24:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:20,541 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-10-12 10:24:20,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:24:20,541 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-10-12 10:24:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 10:24:20,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:20,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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 10:24:20,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:20,545 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:20,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:20,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1477566463, now seen corresponding path program 1 times [2020-10-12 10:24:20,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:20,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814149138] [2020-10-12 10:24:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:20,583 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:24:20,584 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:24:20,584 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:24:20,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:20,609 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:24:20,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:24:20 BoogieIcfgContainer [2020-10-12 10:24:20,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:24:20,613 INFO L168 Benchmark]: Toolchain (without parser) took 1784.96 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.1 MB in the beginning and 118.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:20,614 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 10:24:20,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.82 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 102.9 MB in the beginning and 184.0 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:20,616 INFO L168 Benchmark]: Boogie Preprocessor took 63.83 ms. Allocated memory is still 205.0 MB. Free memory was 184.0 MB in the beginning and 181.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:20,617 INFO L168 Benchmark]: RCFGBuilder took 350.85 ms. Allocated memory is still 205.0 MB. Free memory was 181.6 MB in the beginning and 163.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:20,618 INFO L168 Benchmark]: TraceAbstraction took 943.68 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 118.7 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:20,622 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.82 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 102.9 MB in the beginning and 184.0 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.83 ms. Allocated memory is still 205.0 MB. Free memory was 184.0 MB in the beginning and 181.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 350.85 ms. Allocated memory is still 205.0 MB. Free memory was 181.6 MB in the beginning and 163.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 943.68 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 118.7 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 31]: 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: [L35] signed long long ARR_SIZE ; [L39] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L40] CALL assume_abort_if_not(ARR_SIZE > 0) [L29] COND FALSE !(!cond) [L40] RET assume_abort_if_not(ARR_SIZE > 0) [L42] int array1[ARR_SIZE] ; [L43] int array2[ARR_SIZE] ; [L44] int count = 0, num = -1; [L45] signed long long sum = 0 ; [L46] int temp ; [L47] short index ; [L49] count=0 [L49] COND FALSE !(count=0 && index < ARR_SIZE) [L29] COND FALSE !(!cond) [L61] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L63] array1[index] = num * (num * count) [L64] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L64] EXPR array2[index] [L64] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L64] array2[index] = (index % 3 == 0) ? array2[index] : (num * count) [L67] temp = __VERIFIER_nondet_int() [L68] COND TRUE temp == 0 [L71] count=0 [L71] COND FALSE !(count