/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 --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/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:32:27,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:32:27,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:32:27,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:32:27,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:32:27,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:32:27,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:32:27,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:32:27,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:32:27,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:32:27,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:32:27,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:32:27,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:32:27,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:32:27,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:32:27,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:32:27,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:32:27,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:32:27,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:32:27,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:32:27,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:32:27,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:32:27,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:32:27,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:32:27,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:32:27,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:32:27,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:32:27,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:32:27,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:32:27,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:32:27,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:32:27,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:32:27,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:32:27,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:32:27,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:32:27,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:32:27,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:32:27,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:32:27,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:32:27,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:32:27,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:32:27,208 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 [2020-09-21 11:32:27,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:32:27,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:32:27,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:32:27,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:32:27,261 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:32:27,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:32:27,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:32:27,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:32:27,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:32:27,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:32:27,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:32:27,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:32:27,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:32:27,265 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:32:27,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:32:27,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:32:27,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:32:27,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:32:27,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:32:27,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:32:27,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:32:27,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:32:27,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:32:27,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:32:27,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:32:27,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:32:27,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:32:27,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:32:27,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:32:27,268 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.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; [2020-09-21 11:32:27,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:32:27,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:32:27,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:32:27,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:32:27,762 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:32:27,763 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-09-21 11:32:27,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c626c37/2a208b76d404422694d25b4f5ca5a514/FLAG1df8f2971 [2020-09-21 11:32:28,408 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:32:28,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-09-21 11:32:28,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c626c37/2a208b76d404422694d25b4f5ca5a514/FLAG1df8f2971 [2020-09-21 11:32:28,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c626c37/2a208b76d404422694d25b4f5ca5a514 [2020-09-21 11:32:28,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:32:28,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:32:28,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:32:28,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:32:28,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:32:28,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:32:28" (1/1) ... [2020-09-21 11:32:28,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:28, skipping insertion in model container [2020-09-21 11:32:28,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:32:28" (1/1) ... [2020-09-21 11:32:28,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:32:28,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:32:29,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:32:29,115 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:32:29,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:32:29,160 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:32:29,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29 WrapperNode [2020-09-21 11:32:29,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:32:29,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:32:29,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:32:29,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:32:29,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (1/1) ... [2020-09-21 11:32:29,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:32:29,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:32:29,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:32:29,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:32:29,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (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 [2020-09-21 11:32:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:32:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:32:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:32:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:32:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:32:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 11:32:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:32:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:32:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:32:29,691 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:32:29,691 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:32:29,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:32:29 BoogieIcfgContainer [2020-09-21 11:32:29,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:32:29,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:32:29,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:32:29,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:32:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:32:28" (1/3) ... [2020-09-21 11:32:29,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffe0a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:32:29, skipping insertion in model container [2020-09-21 11:32:29,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:32:29" (2/3) ... [2020-09-21 11:32:29,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffe0a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:32:29, skipping insertion in model container [2020-09-21 11:32:29,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:32:29" (3/3) ... [2020-09-21 11:32:29,706 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2020-09-21 11:32:29,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:32:29,728 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:32:29,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:32:29,788 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:32:29,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:32:29,788 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:32:29,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:32:29,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:32:29,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:32:29,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:32:29,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:32:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-09-21 11:32:29,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 11:32:29,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:29,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:29,817 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:29,824 INFO L82 PathProgramCache]: Analyzing trace with hash 446778609, now seen corresponding path program 1 times [2020-09-21 11:32:29,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:29,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388381311] [2020-09-21 11:32:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-21 11:32:30,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:32:30,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-21 11:32:30,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:32:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:32:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:32:30,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388381311] [2020-09-21 11:32:30,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:32:30,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:32:30,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293264981] [2020-09-21 11:32:30,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:32:30,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:30,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:32:30,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:32:30,791 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2020-09-21 11:32:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:39,424 INFO L93 Difference]: Finished difference Result 69 states and 97 transitions. [2020-09-21 11:32:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:32:39,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-21 11:32:39,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:39,445 INFO L225 Difference]: With dead ends: 69 [2020-09-21 11:32:39,445 INFO L226 Difference]: Without dead ends: 35 [2020-09-21 11:32:39,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:32:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-21 11:32:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-09-21 11:32:39,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 11:32:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2020-09-21 11:32:39,499 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 15 [2020-09-21 11:32:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:39,500 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2020-09-21 11:32:39,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:32:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2020-09-21 11:32:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 11:32:39,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:39,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:39,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:32:39,511 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:39,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:39,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1003929308, now seen corresponding path program 1 times [2020-09-21 11:32:39,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:39,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862459175] [2020-09-21 11:32:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:39,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:32:39,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -1 [2020-09-21 11:32:39,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 1 [2020-09-21 11:32:39,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:32:39,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 11:32:39,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:32:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:32:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:39,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:39,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:39,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:39,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:39,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:39,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:32:39,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:39,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:32:39,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862459175] [2020-09-21 11:32:39,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:32:39,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:32:39,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230586486] [2020-09-21 11:32:39,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:32:39,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:39,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:32:39,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:32:39,912 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 5 states. [2020-09-21 11:32:42,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:42,422 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-09-21 11:32:42,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:32:42,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-21 11:32:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:42,423 INFO L225 Difference]: With dead ends: 60 [2020-09-21 11:32:42,423 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:32:42,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:32:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:32:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:32:42,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:32:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:32:42,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-21 11:32:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:42,427 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:32:42,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:32:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:32:42,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:32:42,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:32:42,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:32:42,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:32:42,641 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= ~__return_121~0 |old(~__return_121~0)|) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= ~__tmp_112_0~0 |old(~__tmp_112_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|)) [2020-09-21 11:32:42,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:32:42,642 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:32:42,642 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 11:32:42,642 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:32:42,642 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:32:42,642 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:32:42,642 INFO L268 CegarLoopResult]: For program point L126(lines 126 141) no Hoare annotation was computed. [2020-09-21 11:32:42,643 INFO L268 CegarLoopResult]: For program point L60(lines 60 82) no Hoare annotation was computed. [2020-09-21 11:32:42,643 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 149) no Hoare annotation was computed. [2020-09-21 11:32:42,643 INFO L268 CegarLoopResult]: For program point L23(lines 23 143) no Hoare annotation was computed. [2020-09-21 11:32:42,644 INFO L271 CegarLoopResult]: At program point L81(lines 15 149) the Hoare annotation is: true [2020-09-21 11:32:42,644 INFO L268 CegarLoopResult]: For program point L115(lines 115 142) no Hoare annotation was computed. [2020-09-21 11:32:42,645 INFO L271 CegarLoopResult]: At program point L140(lines 23 143) the Hoare annotation is: true [2020-09-21 11:32:42,645 INFO L268 CegarLoopResult]: For program point L37(lines 37 84) no Hoare annotation was computed. [2020-09-21 11:32:42,646 INFO L271 CegarLoopResult]: At program point L132(lines 23 143) the Hoare annotation is: true [2020-09-21 11:32:42,646 INFO L268 CegarLoopResult]: For program point L95(lines 95 104) no Hoare annotation was computed. [2020-09-21 11:32:42,646 INFO L264 CegarLoopResult]: At program point L120(lines 23 143) the Hoare annotation is: (= (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))) main_~main__x~0) [2020-09-21 11:32:42,647 INFO L264 CegarLoopResult]: At program point L54(lines 24 112) the Hoare annotation is: (= (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* .cse0 4294967296) (* .cse1 3) (* (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296) 4294967296))))) main_~main__x~0) [2020-09-21 11:32:42,647 INFO L268 CegarLoopResult]: For program point L21(lines 21 148) no Hoare annotation was computed. [2020-09-21 11:32:42,647 INFO L268 CegarLoopResult]: For program point L46(lines 46 83) no Hoare annotation was computed. [2020-09-21 11:32:42,647 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 149) no Hoare annotation was computed. [2020-09-21 11:32:42,649 INFO L264 CegarLoopResult]: At program point L42(lines 24 112) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ (* .cse0 (- 4294967296)) main_~main__x~0) 3))))) [2020-09-21 11:32:42,649 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2020-09-21 11:32:42,649 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 149) the Hoare annotation is: (and (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|)) [2020-09-21 11:32:42,650 INFO L268 CegarLoopResult]: For program point L88(lines 88 110) no Hoare annotation was computed. [2020-09-21 11:32:42,650 INFO L268 CegarLoopResult]: For program point L35(lines 35 111) no Hoare annotation was computed. [2020-09-21 11:32:42,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:32:42 BoogieIcfgContainer [2020-09-21 11:32:42,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:32:42,691 INFO L168 Benchmark]: Toolchain (without parser) took 13915.56 ms. Allocated memory was 137.9 MB in the beginning and 230.7 MB in the end (delta: 92.8 MB). Free memory was 101.1 MB in the beginning and 147.2 MB in the end (delta: -46.1 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:32:42,695 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:32:42,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.93 ms. Allocated memory is still 137.9 MB. Free memory was 100.4 MB in the beginning and 89.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:32:42,698 INFO L168 Benchmark]: Boogie Preprocessor took 108.63 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 89.7 MB in the beginning and 178.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:32:42,699 INFO L168 Benchmark]: RCFGBuilder took 426.00 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 161.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:32:42,704 INFO L168 Benchmark]: TraceAbstraction took 12986.95 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 161.5 MB in the beginning and 147.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:32:42,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.93 ms. Allocated memory is still 137.9 MB. Free memory was 100.4 MB in the beginning and 89.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.63 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 89.7 MB in the beginning and 178.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.00 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 161.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12986.95 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 161.5 MB in the beginning and 147.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: 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: 24]: Loop Invariant Derived loop invariant: 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 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296) == main__x - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 26 SDslu, 70 SDs, 0 SdLazy, 120 SolverSat, 7 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 20 NumberOfFragments, 159 HoareAnnotationTreeSize, 10 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 4685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...