/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:56:35,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:56:35,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:56:35,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:56:35,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:56:35,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:56:35,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:56:35,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:56:35,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:56:35,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:56:35,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:56:35,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:56:35,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:56:35,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:56:35,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:56:35,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:56:35,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:56:35,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:56:35,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:56:35,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:56:35,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:56:35,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:56:35,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:56:35,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:56:35,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:56:35,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:56:35,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:56:35,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:56:35,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:56:35,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:56:35,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:56:35,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:56:35,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:56:35,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:56:35,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:56:35,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:56:35,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:56:35,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:56:35,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:56:35,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:56:35,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:56:35,334 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 15:56:35,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:56:35,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:56:35,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:56:35,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:56:35,378 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:56:35,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:56:35,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:56:35,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:56:35,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:56:35,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:56:35,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:56:35,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:56:35,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:56:35,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:56:35,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:56:35,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:56:35,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:56:35,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:56:35,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:56:35,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:56:35,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:56:35,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:56:35,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:56:35,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:56:35,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:56:35,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:56:35,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:56:35,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:56:35,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:56:35,385 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:56:35,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:56:35,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:56:35,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:56:35,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:56:35,897 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:56:35,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2020-09-24 15:56:35,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f550b1675/41cac981fd6645299140181cc0c30f52/FLAG6189f6a28 [2020-09-24 15:56:36,542 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:56:36,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2020-09-24 15:56:36,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f550b1675/41cac981fd6645299140181cc0c30f52/FLAG6189f6a28 [2020-09-24 15:56:36,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f550b1675/41cac981fd6645299140181cc0c30f52 [2020-09-24 15:56:36,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:56:36,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:56:36,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:36,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:56:36,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:56:36,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:36" (1/1) ... [2020-09-24 15:56:36,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbed158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:36, skipping insertion in model container [2020-09-24 15:56:36,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:36" (1/1) ... [2020-09-24 15:56:36,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:56:36,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:56:37,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:37,141 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:56:37,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:37,170 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:56:37,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37 WrapperNode [2020-09-24 15:56:37,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:37,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:56:37,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:56:37,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:56:37,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (1/1) ... [2020-09-24 15:56:37,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:56:37,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:56:37,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:56:37,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:56:37,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (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 15:56:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:56:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:56:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:56:37,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:56:37,541 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:56:37,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:37 BoogieIcfgContainer [2020-09-24 15:56:37,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:56:37,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:56:37,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:56:37,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:56:37,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:56:36" (1/3) ... [2020-09-24 15:56:37,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7974df6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:37, skipping insertion in model container [2020-09-24 15:56:37,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:37" (2/3) ... [2020-09-24 15:56:37,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7974df6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:37, skipping insertion in model container [2020-09-24 15:56:37,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:37" (3/3) ... [2020-09-24 15:56:37,554 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2020-09-24 15:56:37,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:56:37,575 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:56:37,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:56:37,625 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:56:37,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:56:37,625 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:56:37,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:56:37,626 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:56:37,626 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:56:37,626 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:56:37,626 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:56:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-09-24 15:56:37,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-24 15:56:37,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:37,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:37,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:37,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:37,661 INFO L82 PathProgramCache]: Analyzing trace with hash 200623931, now seen corresponding path program 1 times [2020-09-24 15:56:37,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:37,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916327419] [2020-09-24 15:56:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:37,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:37,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:37,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:37,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 15:56:37,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 15:56:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:56:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:56:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:38,330 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 10 [2020-09-24 15:56:38,491 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 16 [2020-09-24 15:56:38,644 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-09-24 15:56:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:38,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:38,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:38,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:38,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:38,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:38,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:56:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:38,748 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 15:56:38,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916327419] [2020-09-24 15:56:38,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:38,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:56:38,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154291540] [2020-09-24 15:56:38,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:56:38,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:38,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:56:38,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:56:38,792 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2020-09-24 15:56:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:38,887 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-09-24 15:56:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:56:38,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-09-24 15:56:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:38,899 INFO L225 Difference]: With dead ends: 22 [2020-09-24 15:56:38,899 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:56:38,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:56:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:56:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:56:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:56:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:56:38,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-09-24 15:56:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:38,934 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:56:38,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:56:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:56:38,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:56:38,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:56:38,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:56:38,957 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 15:56:38,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:56:38,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:56:38,958 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:56:38,958 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:56:38,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:56:38,959 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-09-24 15:56:38,959 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 3 19) the Hoare annotation is: true [2020-09-24 15:56:38,959 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 3 19) no Hoare annotation was computed. [2020-09-24 15:56:38,959 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 15:56:38,959 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 15:56:38,960 INFO L264 CegarLoopResult]: At program point L13(lines 3 19) the Hoare annotation is: false [2020-09-24 15:56:38,960 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 3 19) no Hoare annotation was computed. [2020-09-24 15:56:38,960 INFO L268 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-09-24 15:56:38,960 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 15:56:38,960 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 15:56:38,960 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 15:56:38,961 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 15:56:38,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:56:38 BoogieIcfgContainer [2020-09-24 15:56:38,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:56:38,976 INFO L168 Benchmark]: Toolchain (without parser) took 2092.95 ms. Allocated memory was 148.9 MB in the beginning and 232.8 MB in the end (delta: 83.9 MB). Free memory was 105.5 MB in the beginning and 190.3 MB in the end (delta: -84.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:56:38,977 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-24 15:56:38,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.61 ms. Allocated memory is still 148.9 MB. Free memory was 104.6 MB in the beginning and 95.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:56:38,979 INFO L168 Benchmark]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 148.9 MB. Free memory was 95.5 MB in the beginning and 94.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:56:38,980 INFO L168 Benchmark]: RCFGBuilder took 342.63 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 94.2 MB in the beginning and 173.2 MB in the end (delta: -79.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:56:38,981 INFO L168 Benchmark]: TraceAbstraction took 1427.76 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 173.2 MB in the beginning and 190.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:56:38,985 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 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.61 ms. Allocated memory is still 148.9 MB. Free memory was 104.6 MB in the beginning and 95.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 148.9 MB. Free memory was 95.5 MB in the beginning and 94.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.63 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 94.2 MB in the beginning and 173.2 MB in the end (delta: -79.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1427.76 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 173.2 MB in the beginning and 190.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 1250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...