/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:30:55,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:30:55,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:30:55,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:30:55,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:30:55,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:30:55,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:30:55,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:30:55,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:30:55,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:30:55,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:30:55,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:30:55,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:30:55,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:30:55,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:30:55,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:30:55,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:30:55,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:30:55,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:30:55,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:30:55,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:30:55,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:30:55,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:30:55,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:30:55,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:30:55,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:30:55,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:30:55,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:30:55,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:30:55,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:30:55,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:30:55,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:30:55,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:30:55,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:30:55,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:30:55,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:30:55,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:30:55,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:30:55,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:30:55,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:30:55,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:30:55,351 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 [2020-09-24 18:30:55,378 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:30:55,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:30:55,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:30:55,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:30:55,380 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:30:55,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:30:55,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:30:55,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:30:55,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:30:55,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:30:55,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:30:55,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:30:55,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:30:55,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:30:55,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:30:55,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:30:55,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:30:55,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:30:55,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:30:55,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:30:55,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:30:55,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:30:55,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:30:55,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:30:55,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:30:55,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:30:55,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:30:55,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:30:55,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:30:55,386 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:30:55,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:30:55,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:30:55,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:30:55,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:30:55,892 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:30:55,893 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-09-24 18:30:55,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/991e9f9ba/ee7dcf68a97845a89445f2b8458d7729/FLAG6c7f18652 [2020-09-24 18:30:56,533 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:30:56,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-09-24 18:30:56,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/991e9f9ba/ee7dcf68a97845a89445f2b8458d7729/FLAG6c7f18652 [2020-09-24 18:30:56,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/991e9f9ba/ee7dcf68a97845a89445f2b8458d7729 [2020-09-24 18:30:56,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:30:56,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:30:56,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:56,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:30:56,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:30:56,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:56" (1/1) ... [2020-09-24 18:30:56,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b23a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:56, skipping insertion in model container [2020-09-24 18:30:56,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:56" (1/1) ... [2020-09-24 18:30:56,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:30:56,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:30:57,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:57,222 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:30:57,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:57,261 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:30:57,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57 WrapperNode [2020-09-24 18:30:57,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:57,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:30:57,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:30:57,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:30:57,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (1/1) ... [2020-09-24 18:30:57,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:30:57,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:30:57,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:30:57,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:30:57,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (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 [2020-09-24 18:30:57,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:30:57,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:30:57,446 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:30:57,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:30:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:30:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:30:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:30:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:30:57,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:30:57,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:30:57,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:30:57,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:30:57,754 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:30:57,754 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:30:57,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:57 BoogieIcfgContainer [2020-09-24 18:30:57,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:30:57,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:30:57,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:30:57,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:30:57,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:30:56" (1/3) ... [2020-09-24 18:30:57,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a9dab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:57, skipping insertion in model container [2020-09-24 18:30:57,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:57" (2/3) ... [2020-09-24 18:30:57,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a9dab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:57, skipping insertion in model container [2020-09-24 18:30:57,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:57" (3/3) ... [2020-09-24 18:30:57,785 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2020-09-24 18:30:57,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:30:57,806 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:30:57,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:30:57,862 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:30:57,862 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:30:57,862 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:30:57,862 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:30:57,863 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:30:57,863 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:30:57,863 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:30:57,863 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:30:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-09-24 18:30:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 18:30:57,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:57,898 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] [2020-09-24 18:30:57,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:57,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:57,905 INFO L82 PathProgramCache]: Analyzing trace with hash 405390035, now seen corresponding path program 1 times [2020-09-24 18:30:57,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:57,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871625370] [2020-09-24 18:30:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:58,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:58,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 18:30:58,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 18:30:58,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:30:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:30:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:30:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:58,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:58,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:58,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:58,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:58,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:30:58,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:58,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:58,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871625370] [2020-09-24 18:30:58,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:58,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:30:58,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595973077] [2020-09-24 18:30:58,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:30:58,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:58,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:30:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:30:58,651 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 9 states. [2020-09-24 18:30:59,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:59,423 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-09-24 18:30:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:30:59,426 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-09-24 18:30:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:59,439 INFO L225 Difference]: With dead ends: 65 [2020-09-24 18:30:59,440 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 18:30:59,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:30:59,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 18:30:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-24 18:30:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-24 18:30:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-09-24 18:30:59,503 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 26 [2020-09-24 18:30:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:59,504 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-09-24 18:30:59,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:30:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-09-24 18:30:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 18:30:59,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:59,506 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] [2020-09-24 18:30:59,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:30:59,507 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:59,508 INFO L82 PathProgramCache]: Analyzing trace with hash -86090943, now seen corresponding path program 1 times [2020-09-24 18:30:59,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:59,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081782491] [2020-09-24 18:30:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:59,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:59,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 18:30:59,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-24 18:30:59,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:30:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:30:59,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:31:00,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:31:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:31:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:00,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:31:00,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:31:00,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:31:00,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:31:00,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:31:00,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:31:00,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:31:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:31:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:31:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:31:00,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081782491] [2020-09-24 18:31:00,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:31:00,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 18:31:00,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506067554] [2020-09-24 18:31:00,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:31:00,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:31:00,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:31:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:31:00,069 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 11 states. [2020-09-24 18:31:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:31:00,388 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-09-24 18:31:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:31:00,388 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-09-24 18:31:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:31:00,389 INFO L225 Difference]: With dead ends: 34 [2020-09-24 18:31:00,389 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:31:00,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:31:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:31:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:31:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:31:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:31:00,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-09-24 18:31:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:31:00,393 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:31:00,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:31:00,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:31:00,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:31:00,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:31:00,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:31:00,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:31:00,471 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 18:31:00,473 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_72~0 |old(~__return_72~0)|)) [2020-09-24 18:31:00,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:31:00,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:31:00,474 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:31:00,474 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:31:00,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:31:00,474 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 18:31:00,475 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 68) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L23(lines 23 66) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L17(lines 17 67) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 18:31:00,476 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 18:31:00,477 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 18:31:00,477 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 18:31:00,478 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 18:31:00,478 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 68) no Hoare annotation was computed. [2020-09-24 18:31:00,478 INFO L268 CegarLoopResult]: For program point L42(lines 42 64) no Hoare annotation was computed. [2020-09-24 18:31:00,478 INFO L264 CegarLoopResult]: At program point L38(lines 28 66) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (or (not (= main_~main__j~0 main_~main__i~0)) (= main_~main__x~0 main_~main__y~0))) [2020-09-24 18:31:00,478 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 18:31:00,478 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 18:31:00,480 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2020-09-24 18:31:00,480 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 18:31:00,480 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 18:31:00,480 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 68) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-09-24 18:31:00,480 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L49(lines 49 58) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-24 18:31:00,481 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 18:31:00,482 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-24 18:31:00,482 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 18:31:00,482 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 18:31:00,482 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 18:31:00,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:31:00 BoogieIcfgContainer [2020-09-24 18:31:00,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:31:00,522 INFO L168 Benchmark]: Toolchain (without parser) took 3615.79 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 102.9 MB in the beginning and 205.5 MB in the end (delta: -102.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,525 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.61 ms. Allocated memory is still 139.5 MB. Free memory was 102.0 MB in the beginning and 92.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,528 INFO L168 Benchmark]: Boogie Preprocessor took 106.58 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.2 MB in the beginning and 180.7 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,530 INFO L168 Benchmark]: RCFGBuilder took 391.56 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 166.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,533 INFO L168 Benchmark]: TraceAbstraction took 2736.97 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 165.2 MB in the beginning and 205.5 MB in the end (delta: -40.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:00,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 356.61 ms. Allocated memory is still 139.5 MB. Free memory was 102.0 MB in the beginning and 92.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.58 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.2 MB in the beginning and 180.7 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 391.56 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 166.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2736.97 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 165.2 MB in the beginning and 205.5 MB in the end (delta: -40.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: \old(__return_72) == __return_72 && (!(main__j == main__i) || main__x == main__y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 151 SDslu, 106 SDs, 0 SdLazy, 329 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 24 HoareAnnotationTreeSize, 5 FomulaSimplifications, 44 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 6895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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 correct! Received shutdown request...