/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:50:19,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:50:19,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:50:19,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:50:19,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:50:19,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:50:19,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:50:19,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:50:19,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:50:19,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:50:19,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:50:19,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:50:19,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:50:19,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:50:19,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:50:19,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:50:19,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:50:19,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:50:19,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:50:19,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:50:19,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:50:19,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:50:19,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:50:19,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:50:19,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:50:19,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:50:19,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:50:19,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:50:19,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:50:19,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:50:19,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:50:19,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:50:19,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:50:19,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:50:19,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:50:19,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:50:19,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:50:19,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:50:19,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:50:19,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:50:19,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:50:19,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 23:50:19,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:50:19,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:50:19,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:50:19,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:50:19,362 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:50:19,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:50:19,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:50:19,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:50:19,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:50:19,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:50:19,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:50:19,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:50:19,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:50:19,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:50:19,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:50:19,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:50:19,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:50:19,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:50:19,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:50:19,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:50:19,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:50:19,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:50:19,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:50:19,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:50:19,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:50:19,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:50:19,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:50:19,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:50:19,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:50:19,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:50:19,675 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-10-14 23:50:19,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3566454d5/3bf61c1de48540349f3ce7cd7132998d/FLAGc023312f1 [2020-10-14 23:50:20,204 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:50:20,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-10-14 23:50:20,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3566454d5/3bf61c1de48540349f3ce7cd7132998d/FLAGc023312f1 [2020-10-14 23:50:20,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3566454d5/3bf61c1de48540349f3ce7cd7132998d [2020-10-14 23:50:20,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:50:20,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:50:20,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:50:20,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:50:20,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:50:20,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ed318b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20, skipping insertion in model container [2020-10-14 23:50:20,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:50:20,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:50:20,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:50:20,849 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:50:20,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:50:20,877 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:50:20,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20 WrapperNode [2020-10-14 23:50:20,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:50:20,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:50:20,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:50:20,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:50:20,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... [2020-10-14 23:50:20,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:50:20,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:50:20,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:50:20,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:50:20,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:50:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:50:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:50:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:50:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:50:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:50:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 23:50:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:50:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:50:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:50:21,253 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:50:21,254 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 23:50:21,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:21 BoogieIcfgContainer [2020-10-14 23:50:21,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:50:21,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:50:21,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:50:21,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:50:21,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:50:20" (1/3) ... [2020-10-14 23:50:21,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67baf0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:21, skipping insertion in model container [2020-10-14 23:50:21,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:20" (2/3) ... [2020-10-14 23:50:21,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67baf0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:21, skipping insertion in model container [2020-10-14 23:50:21,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:21" (3/3) ... [2020-10-14 23:50:21,265 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2020-10-14 23:50:21,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:50:21,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:50:21,296 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:50:21,319 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:50:21,319 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:50:21,319 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:50:21,319 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:50:21,320 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:50:21,320 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:50:21,320 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:50:21,320 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:50:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-14 23:50:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-14 23:50:21,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:50:21,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:50:21,340 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:50:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:50:21,345 INFO L82 PathProgramCache]: Analyzing trace with hash 964689295, now seen corresponding path program 1 times [2020-10-14 23:50:21,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:50:21,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106849415] [2020-10-14 23:50:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:50:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:50:21,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:50:21,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:50:21,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 23:50:21,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:50:21,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 23:50:21,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:50:21,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:50:21,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:50:21,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:50:21,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:50:21,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:50:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:50:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:50:21,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:50:21,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:50:21,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:50:21,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:50:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:50:21,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:50:21,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:50:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:50:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:50:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:50:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:50:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:50:21,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106849415] [2020-10-14 23:50:21,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:50:21,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:50:21,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539329730] [2020-10-14 23:50:21,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:50:21,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:50:21,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:50:21,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:50:21,854 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2020-10-14 23:50:22,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:50:22,042 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2020-10-14 23:50:22,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:50:22,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-14 23:50:22,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:50:22,055 INFO L225 Difference]: With dead ends: 36 [2020-10-14 23:50:22,055 INFO L226 Difference]: Without dead ends: 20 [2020-10-14 23:50:22,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:50:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-14 23:50:22,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-10-14 23:50:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-14 23:50:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-14 23:50:22,096 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2020-10-14 23:50:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:50:22,097 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-14 23:50:22,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:50:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-10-14 23:50:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 23:50:22,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:50:22,098 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:50:22,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:50:22,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:50:22,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:50:22,099 INFO L82 PathProgramCache]: Analyzing trace with hash 2096975293, now seen corresponding path program 1 times [2020-10-14 23:50:22,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:50:22,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997799047] [2020-10-14 23:50:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:50:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:50:22,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:50:22,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:50:22,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 23:50:22,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:50:22,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 23:50:22,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:50:22,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:50:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:50:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 23:50:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:50:22,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:50:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:50:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:50:22,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:50:22,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:50:22,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:50:22,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:50:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:50:22,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:50:22,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:50:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:50:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:50:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:50:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:50:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:50:22,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997799047] [2020-10-14 23:50:22,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:50:22,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:50:22,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131524306] [2020-10-14 23:50:22,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:50:22,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:50:22,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:50:22,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:50:22,672 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 5 states. [2020-10-14 23:50:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:50:26,509 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2020-10-14 23:50:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:50:26,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 23:50:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:50:26,510 INFO L225 Difference]: With dead ends: 29 [2020-10-14 23:50:26,510 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 23:50:26,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:50:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 23:50:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 23:50:26,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 23:50:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 23:50:26,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-14 23:50:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:50:26,513 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 23:50:26,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:50:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 23:50:26,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 23:50:26,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:50:26,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 23:50:26,666 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:50:26,667 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_107~0 |old(~__return_107~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-10-14 23:50:26,671 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:50:26,671 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:50:26,671 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 23:50:26,672 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 23:50:26,672 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:50:26,672 INFO L268 CegarLoopResult]: For program point L25(lines 25 47) no Hoare annotation was computed. [2020-10-14 23:50:26,672 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 7 76) no Hoare annotation was computed. [2020-10-14 23:50:26,673 INFO L268 CegarLoopResult]: For program point L52(lines 52 74) no Hoare annotation was computed. [2020-10-14 23:50:26,673 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 7 76) no Hoare annotation was computed. [2020-10-14 23:50:26,673 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2020-10-14 23:50:26,673 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 7 76) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-10-14 23:50:26,673 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-14 23:50:26,674 INFO L268 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2020-10-14 23:50:26,674 INFO L268 CegarLoopResult]: For program point L16(lines 16 48) no Hoare annotation was computed. [2020-10-14 23:50:26,675 INFO L268 CegarLoopResult]: For program point L14(lines 14 75) no Hoare annotation was computed. [2020-10-14 23:50:26,675 INFO L264 CegarLoopResult]: At program point L45(lines 8 76) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (<= (div main_~main__y~0 4294967296) 0) (<= 1 main_~main__y~0)) (and .cse0 (= (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* .cse1 4294967296) (* .cse2 3) (* (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296) 4294967296))))) main_~main__x~0)))) [2020-10-14 23:50:26,676 INFO L268 CegarLoopResult]: For program point L35(lines 35 46) no Hoare annotation was computed. [2020-10-14 23:50:26,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:50:26 BoogieIcfgContainer [2020-10-14 23:50:26,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:50:26,717 INFO L168 Benchmark]: Toolchain (without parser) took 6081.17 ms. Allocated memory was 147.3 MB in the beginning and 233.3 MB in the end (delta: 86.0 MB). Free memory was 103.6 MB in the beginning and 178.4 MB in the end (delta: -74.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,718 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.57 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 93.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,720 INFO L168 Benchmark]: Boogie Preprocessor took 111.24 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 93.3 MB in the beginning and 181.9 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,722 INFO L168 Benchmark]: RCFGBuilder took 267.48 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 169.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,724 INFO L168 Benchmark]: TraceAbstraction took 5451.91 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 168.3 MB in the beginning and 178.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-10-14 23:50:26,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.57 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 93.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.24 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 93.3 MB in the beginning and 181.9 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 267.48 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 169.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5451.91 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 168.3 MB in the beginning and 178.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: ((\old(__return_107) == __return_107 && main__y / 4294967296 <= 0) && 1 <= main__y) || (\old(__return_107) == __return_107 && main__x / 4294967296 * 4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * 3 + (main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296 * 4294967296 == main__x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 46 SDslu, 22 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 70 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 2246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 correct! Received shutdown request...