/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:16:07,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:16:07,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:16:07,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:16:07,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:16:07,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:16:07,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:16:07,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:16:07,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:16:07,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:16:07,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:16:07,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:16:07,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:16:07,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:16:07,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:16:07,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:16:07,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:16:07,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:16:07,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:16:07,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:16:07,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:16:07,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:16:07,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:16:07,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:16:07,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:16:07,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:16:07,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:16:07,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:16:07,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:16:07,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:16:07,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:16:07,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:16:07,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:16:07,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:16:07,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:16:07,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:16:07,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:16:07,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:16:07,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:16:07,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:16:07,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:16:07,468 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 [2020-10-14 18:16:07,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:16:07,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:16:07,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:16:07,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:16:07,517 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:16:07,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:16:07,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:16:07,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:16:07,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:16:07,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:16:07,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:16:07,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:16:07,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:16:07,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:16:07,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:16:07,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:16:07,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:16:07,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:16:07,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:16:07,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:16:07,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:16:07,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:16:07,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:16:07,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:16:07,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:16:07,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:16:07,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:16:07,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:16:07,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:16:07,524 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:16:07,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:16:07,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:16:07,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:16:07,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:16:07,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:16:07,863 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina1f.c [2020-10-14 18:16:07,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52f07626/46dd34fbf77b466cb71c22c111ddaa93/FLAGa4a1e29fd [2020-10-14 18:16:08,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:16:08,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina1f.c [2020-10-14 18:16:08,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52f07626/46dd34fbf77b466cb71c22c111ddaa93/FLAGa4a1e29fd [2020-10-14 18:16:08,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52f07626/46dd34fbf77b466cb71c22c111ddaa93 [2020-10-14 18:16:08,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:16:08,901 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:16:08,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:16:08,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:16:08,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:16:08,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:16:08" (1/1) ... [2020-10-14 18:16:08,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9fea37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:08, skipping insertion in model container [2020-10-14 18:16:08,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:16:08" (1/1) ... [2020-10-14 18:16:08,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:16:08,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:16:09,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:16:09,175 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:16:09,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:16:09,217 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:16:09,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09 WrapperNode [2020-10-14 18:16:09,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:16:09,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:16:09,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:16:09,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:16:09,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (1/1) ... [2020-10-14 18:16:09,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:16:09,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:16:09,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:16:09,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:16:09,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (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 [2020-10-14 18:16:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:16:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:16:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:16:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:16:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:16:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:16:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:16:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:16:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:16:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:16:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 18:16:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:16:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:16:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 18:16:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:16:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:16:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:16:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:16:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:16:09,780 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:16:09,781 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 18:16:09,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:16:09 BoogieIcfgContainer [2020-10-14 18:16:09,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:16:09,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:16:09,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:16:09,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:16:09,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:16:08" (1/3) ... [2020-10-14 18:16:09,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40258a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:16:09, skipping insertion in model container [2020-10-14 18:16:09,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:16:09" (2/3) ... [2020-10-14 18:16:09,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40258a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:16:09, skipping insertion in model container [2020-10-14 18:16:09,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:16:09" (3/3) ... [2020-10-14 18:16:09,799 INFO L109 eAbstractionObserver]: Analyzing ICFG sina1f.c [2020-10-14 18:16:09,813 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:16:09,822 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:16:09,838 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:16:09,874 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:16:09,875 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:16:09,875 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:16:09,875 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:16:09,875 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:16:09,876 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:16:09,876 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:16:09,876 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:16:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-14 18:16:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 18:16:09,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:16:09,912 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] [2020-10-14 18:16:09,913 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:16:09,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:16:09,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1314760119, now seen corresponding path program 1 times [2020-10-14 18:16:09,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:16:09,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605070323] [2020-10-14 18:16:09,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:16:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:16:10,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:10,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:10,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:10,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:11,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:16:11,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 18:16:11,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 18:16:11,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 965 [2020-10-14 18:16:11,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:16:11,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:16:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 18:16:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:16:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 18:16:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:16:11,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:16:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:16:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:11,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:16:11,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:16:11,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:16:11,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:16:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:16:11,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:16:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:16:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:16:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:16:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:16:11,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 18:16:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:16:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:16:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:16:11,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:16:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:16:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 18:16:11,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:16:11,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:16:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:16:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:16:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:16:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:16:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:16:11,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605070323] [2020-10-14 18:16:11,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:16:11,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 18:16:11,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283093818] [2020-10-14 18:16:11,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 18:16:11,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:16:11,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 18:16:11,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 18:16:11,229 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2020-10-14 18:16:11,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:16:11,460 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2020-10-14 18:16:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:16:11,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-14 18:16:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:16:11,476 INFO L225 Difference]: With dead ends: 70 [2020-10-14 18:16:11,476 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 18:16:11,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:16:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 18:16:11,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2020-10-14 18:16:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 18:16:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-14 18:16:11,539 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 22 [2020-10-14 18:16:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:16:11,540 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-14 18:16:11,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 18:16:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-14 18:16:11,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 18:16:11,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:16:11,542 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] [2020-10-14 18:16:11,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:16:11,543 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:16:11,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:16:11,544 INFO L82 PathProgramCache]: Analyzing trace with hash -69884793, now seen corresponding path program 1 times [2020-10-14 18:16:11,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:16:11,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363970679] [2020-10-14 18:16:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:16:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 18:16:11,567 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 18:16:11,571 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:16:11,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:16:11,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:16:11 BoogieIcfgContainer [2020-10-14 18:16:11,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:16:11,613 INFO L168 Benchmark]: Toolchain (without parser) took 2710.62 ms. Allocated memory was 146.8 MB in the beginning and 233.8 MB in the end (delta: 87.0 MB). Free memory was 103.1 MB in the beginning and 184.3 MB in the end (delta: -81.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,617 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.01 ms. Allocated memory is still 146.8 MB. Free memory was 103.1 MB in the beginning and 92.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,621 INFO L168 Benchmark]: Boogie Preprocessor took 149.58 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.6 MB in the beginning and 181.8 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,631 INFO L168 Benchmark]: RCFGBuilder took 419.04 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 164.4 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,632 INFO L168 Benchmark]: TraceAbstraction took 1819.97 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 164.4 MB in the beginning and 184.3 MB in the end (delta: -19.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-10-14 18:16:11,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 312.01 ms. Allocated memory is still 146.8 MB. Free memory was 103.1 MB in the beginning and 92.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.58 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.6 MB in the beginning and 181.8 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.04 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 164.4 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1819.97 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 164.4 MB in the beginning and 184.3 MB in the end (delta: -19.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i