/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/skippedu.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:25:37,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:25:37,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:25:37,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:25:37,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:25:37,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:25:37,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:25:37,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:25:37,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:25:37,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:25:37,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:25:37,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:25:37,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:25:37,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:25:37,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:25:37,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:25:37,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:25:37,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:25:37,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:25:37,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:25:37,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:25:37,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:25:37,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:25:37,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:25:37,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:25:37,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:25:37,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:25:37,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:25:37,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:25:37,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:25:37,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:25:37,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:25:37,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:25:37,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:25:37,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:25:37,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:25:37,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:25:37,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:25:37,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:25:37,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:25:37,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:25:37,492 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 [2020-09-25 03:25:37,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:25:37,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:25:37,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:25:37,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:25:37,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:25:37,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:25:37,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:25:37,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:25:37,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:25:37,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:25:37,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:25:37,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:25:37,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:25:37,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:25:37,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:25:37,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:25:37,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:25:37,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:25:37,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:25:37,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:25:37,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:25:37,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:25:37,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:25:37,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:25:37,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:25:37,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:25:37,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:25:37,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:25:37,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:25:37,550 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:25:38,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:25:38,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:25:38,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:25:38,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:25:38,046 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:25:38,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skippedu.c [2020-09-25 03:25:38,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11b5395d0/badf2104ce794c21ad28b74c0db5027d/FLAGe4d967ea1 [2020-09-25 03:25:38,657 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:25:38,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/skippedu.c [2020-09-25 03:25:38,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11b5395d0/badf2104ce794c21ad28b74c0db5027d/FLAGe4d967ea1 [2020-09-25 03:25:38,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11b5395d0/badf2104ce794c21ad28b74c0db5027d [2020-09-25 03:25:38,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:25:38,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:25:38,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:25:38,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:25:39,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:25:39,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:25:38" (1/1) ... [2020-09-25 03:25:39,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34855c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39, skipping insertion in model container [2020-09-25 03:25:39,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:25:38" (1/1) ... [2020-09-25 03:25:39,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:25:39,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:25:39,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:25:39,289 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:25:39,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:25:39,336 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:25:39,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39 WrapperNode [2020-09-25 03:25:39,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:25:39,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:25:39,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:25:39,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:25:39,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (1/1) ... [2020-09-25 03:25:39,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:25:39,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:25:39,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:25:39,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:25:39,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (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 [2020-09-25 03:25:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:25:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:25:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:25:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:25:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:25:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:25:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:25:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:25:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:25:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:25:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:25:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:25:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:25:39,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:25:39,889 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 03:25:39,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:25:39 BoogieIcfgContainer [2020-09-25 03:25:39,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:25:39,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:25:39,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:25:39,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:25:39,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:25:38" (1/3) ... [2020-09-25 03:25:39,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427b6be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:25:39, skipping insertion in model container [2020-09-25 03:25:39,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:25:39" (2/3) ... [2020-09-25 03:25:39,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427b6be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:25:39, skipping insertion in model container [2020-09-25 03:25:39,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:25:39" (3/3) ... [2020-09-25 03:25:39,904 INFO L109 eAbstractionObserver]: Analyzing ICFG skippedu.c [2020-09-25 03:25:39,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:25:39,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:25:39,951 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:25:39,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:25:39,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:25:39,989 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:25:39,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:25:39,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:25:39,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:25:39,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:25:39,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:25:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-09-25 03:25:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 03:25:40,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:25:40,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:25:40,025 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:25:40,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:25:40,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1270765896, now seen corresponding path program 1 times [2020-09-25 03:25:40,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:25:40,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26901402] [2020-09-25 03:25:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:25:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:40,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:40,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:40,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:41,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:41,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:25:41,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:25:41,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1221 [2020-09-25 03:25:41,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:25:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:25:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:25:41,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:25:41,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:25:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:41,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:41,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:41,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:25:41,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:41,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:25:41,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:25:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:25:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:41,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 03:25:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:41,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:25:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:25:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:25:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:25:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:25:41,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26901402] [2020-09-25 03:25:41,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:25:41,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:25:41,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038754474] [2020-09-25 03:25:41,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:25:41,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:25:41,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:25:41,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:25:41,620 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 5 states. [2020-09-25 03:25:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:25:41,924 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions. [2020-09-25 03:25:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:25:41,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-25 03:25:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:25:41,941 INFO L225 Difference]: With dead ends: 126 [2020-09-25 03:25:41,941 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 03:25:41,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:25:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 03:25:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2020-09-25 03:25:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 03:25:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-09-25 03:25:42,011 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 33 [2020-09-25 03:25:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:25:42,012 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-09-25 03:25:42,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:25:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-09-25 03:25:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 03:25:42,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:25:42,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:25:42,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:25:42,015 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:25:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:25:42,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1492535423, now seen corresponding path program 1 times [2020-09-25 03:25:42,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:25:42,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369514579] [2020-09-25 03:25:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:25:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:42,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:42,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:42,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:42,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:43,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:43,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:45,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:45,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:25:45,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:25:45,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3131 [2020-09-25 03:25:45,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:25:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:25:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:25:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:25:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:45,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:45,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:25:45,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:45,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:25:45,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:25:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:25:45,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:25:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:25:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:25:45,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:25:45,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:25:45,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:25:45,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:25:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:25:45,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:25:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:25:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:25:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:25:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:25:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:25:45,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369514579] [2020-09-25 03:25:45,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:25:45,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:25:45,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464725087] [2020-09-25 03:25:45,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:25:45,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:25:45,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:25:45,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:25:45,604 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 11 states. [2020-09-25 03:25:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:25:46,691 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2020-09-25 03:25:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:25:46,692 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2020-09-25 03:25:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:25:46,694 INFO L225 Difference]: With dead ends: 140 [2020-09-25 03:25:46,694 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:25:46,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:25:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:25:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 68. [2020-09-25 03:25:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 03:25:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-25 03:25:46,708 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 50 [2020-09-25 03:25:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:25:46,709 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-25 03:25:46,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:25:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-25 03:25:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 03:25:46,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:25:46,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:25:46,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:25:46,712 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:25:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:25:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash -153041457, now seen corresponding path program 2 times [2020-09-25 03:25:46,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:25:46,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923354285] [2020-09-25 03:25:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:25:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:25:46,744 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:25:46,745 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:25:46,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:25:46,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:25:46 BoogieIcfgContainer [2020-09-25 03:25:46,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:25:46,780 INFO L168 Benchmark]: Toolchain (without parser) took 7784.13 ms. Allocated memory was 141.6 MB in the beginning and 269.5 MB in the end (delta: 127.9 MB). Free memory was 105.2 MB in the beginning and 101.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 131.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:46,781 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:25:46,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.07 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 94.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:46,783 INFO L168 Benchmark]: Boogie Preprocessor took 133.75 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.2 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:46,784 INFO L168 Benchmark]: RCFGBuilder took 422.04 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 163.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:46,785 INFO L168 Benchmark]: TraceAbstraction took 6880.02 ms. Allocated memory was 205.0 MB in the beginning and 269.5 MB in the end (delta: 64.5 MB). Free memory was 162.3 MB in the beginning and 101.5 MB in the end (delta: 60.9 MB). Peak memory consumption was 125.3 MB. Max. memory is 7.1 GB. [2020-09-25 03:25:46,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 339.07 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 94.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.75 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.2 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.04 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 163.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6880.02 ms. Allocated memory was 205.0 MB in the beginning and 269.5 MB in the end (delta: 64.5 MB). Free memory was 162.3 MB in the beginning and 101.5 MB in the end (delta: 60.9 MB). Peak memory consumption was 125.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int SIZE; [L12] const int MAX = 100000; [L16] SIZE = __VERIFIER_nondet_int() [L17] COND TRUE SIZE > 1 && SIZE < MAX [L19] int i; [L20] int *a = malloc(sizeof(int)*SIZE); [L22] i = 0 [L22] COND TRUE i < SIZE [L24] a[i] = __VERIFIER_nondet_int() [L22] i++ [L22] COND TRUE i < SIZE [L24] a[i] = __VERIFIER_nondet_int() [L22] i++ [L22] COND FALSE !(i < SIZE) [L27] COND FALSE !(SIZE % 2 != 0) [L29] CALL assume_abort_if_not(SIZE % 2 == 0) [L4] COND FALSE !(!cond) [L29] RET assume_abort_if_not(SIZE % 2 == 0) [L30] i = 1 [L30] COND TRUE i <= SIZE/2 [L32] EXPR a[2*i-2] [L32] COND FALSE !(a[2*i-2] > i) [L36] EXPR a[2*i-1] [L36] COND FALSE !(a[2*i-1] > i) [L30] i++ [L30] COND FALSE !(i <= SIZE/2) [L42] i = 0 [L42] COND TRUE i < SIZE [L44] EXPR a[i] [L44] CALL __VERIFIER_assert( a[i] <= i ) [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 244 SDslu, 241 SDs, 0 SdLazy, 449 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 16207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...