/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 enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/heavy-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:35:22,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:35:22,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:35:22,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:35:22,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:35:22,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:35:22,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:35:22,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:35:22,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:35:22,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:35:22,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:35:22,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:35:22,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:35:22,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:35:22,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:35:22,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:35:22,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:35:22,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:35:22,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:35:22,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:35:22,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:35:22,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:35:22,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:35:22,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:35:22,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:35:22,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:35:22,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:35:22,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:35:22,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:35:22,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:35:22,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:35:22,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:35:22,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:35:22,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:35:22,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:35:22,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:35:22,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:35:22,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:35:22,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:35:22,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:35:22,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:35:22,999 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 12:35:23,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:35:23,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:35:23,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:35:23,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:35:23,054 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:35:23,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:35:23,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:35:23,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:35:23,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:35:23,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:35:23,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:35:23,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:35:23,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:35:23,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:35:23,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:35:23,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:35:23,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:35:23,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:35:23,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:35:23,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:35:23,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:35:23,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:35:23,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:35:23,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:35:23,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:35:23,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:35:23,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:35:23,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:35:23,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:35:23,060 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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:35:23,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:35:23,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:35:23,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:35:23,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:35:23,552 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:35:23,554 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/heavy-2.c [2020-09-21 12:35:23,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/219557b4d/2b1a34fc1b5b47f19e69e4e108db5dbf/FLAGaca5d0564 [2020-09-21 12:35:24,201 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:35:24,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/heavy-2.c [2020-09-21 12:35:24,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/219557b4d/2b1a34fc1b5b47f19e69e4e108db5dbf/FLAGaca5d0564 [2020-09-21 12:35:24,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/219557b4d/2b1a34fc1b5b47f19e69e4e108db5dbf [2020-09-21 12:35:24,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:35:24,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:35:24,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:24,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:35:24,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:35:24,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:24,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49469cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24, skipping insertion in model container [2020-09-21 12:35:24,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:24,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:35:24,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:35:24,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:24,865 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:35:24,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:24,958 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:35:24,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24 WrapperNode [2020-09-21 12:35:24,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:24,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:35:24,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:35:24,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:35:25,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (1/1) ... [2020-09-21 12:35:25,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:35:25,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:35:25,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:35:25,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:35:25,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (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 12:35:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:35:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:35:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:35:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:35:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:35:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:35:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:35:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:35:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:35:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-21 12:35:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:35:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:35:25,487 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:35:25,487 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-21 12:35:25,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:25 BoogieIcfgContainer [2020-09-21 12:35:25,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:35:25,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:35:25,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:35:25,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:35:25,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:35:24" (1/3) ... [2020-09-21 12:35:25,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26af34c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:25, skipping insertion in model container [2020-09-21 12:35:25,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:24" (2/3) ... [2020-09-21 12:35:25,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26af34c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:25, skipping insertion in model container [2020-09-21 12:35:25,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:25" (3/3) ... [2020-09-21 12:35:25,520 INFO L109 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2020-09-21 12:35:25,545 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:35:25,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:35:25,583 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:35:25,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:35:25,612 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:35:25,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:35:25,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:35:25,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:35:25,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:35:25,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:35:25,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:35:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-09-21 12:35:25,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-21 12:35:25,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:25,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:35:25,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:25,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:25,650 INFO L82 PathProgramCache]: Analyzing trace with hash 242978043, now seen corresponding path program 1 times [2020-09-21 12:35:25,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:25,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109531879] [2020-09-21 12:35:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:25,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:25,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:26,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:26,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:35:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:35:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-21 12:35:26,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:35:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-21 12:35:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:26,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:26,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:26,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:26,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:26,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:35:26,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:26,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:26,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:26,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:35:26,161 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 12:35:26,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109531879] [2020-09-21 12:35:26,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:26,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:35:26,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874759702] [2020-09-21 12:35:26,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:35:26,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:26,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:35:26,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:35:26,193 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-09-21 12:35:26,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:35:26,297 INFO L93 Difference]: Finished difference Result 42 states and 61 transitions. [2020-09-21 12:35:26,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:35:26,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-21 12:35:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:35:26,311 INFO L225 Difference]: With dead ends: 42 [2020-09-21 12:35:26,312 INFO L226 Difference]: Without dead ends: 23 [2020-09-21 12:35:26,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:35:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-21 12:35:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2020-09-21 12:35:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-21 12:35:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-09-21 12:35:26,361 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2020-09-21 12:35:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:35:26,361 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-09-21 12:35:26,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:35:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-09-21 12:35:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-21 12:35:26,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:26,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:35:26,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:35:26,363 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:26,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash 242949213, now seen corresponding path program 1 times [2020-09-21 12:35:26,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:26,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418508440] [2020-09-21 12:35:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:26,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:26,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:26,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:26,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:35:26,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:35:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 12:35:26,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:35:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:35:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:35:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:35:26,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:26,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:26,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:26,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:35:26,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:26,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:26,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:26,628 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 12:35:26,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418508440] [2020-09-21 12:35:26,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:26,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:35:26,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734050232] [2020-09-21 12:35:26,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:35:26,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:26,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:35:26,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:35:26,633 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2020-09-21 12:35:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:35:26,721 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2020-09-21 12:35:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:35:26,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-21 12:35:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:35:26,723 INFO L225 Difference]: With dead ends: 21 [2020-09-21 12:35:26,723 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:35:26,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:35:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:35:26,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:35:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:35:26,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:35:26,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-09-21 12:35:26,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:35:26,726 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:35:26,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:35:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:35:26,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:35:26,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:35:26,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:35:26,847 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:35:26,848 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#array~0.base| |old(~#array~0.base)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#array~0.offset| |old(~#array~0.offset)|)) [2020-09-21 12:35:26,848 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:35:26,848 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:35:26,848 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:35:26,849 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:35:26,849 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:35:26,849 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 5 21) no Hoare annotation was computed. [2020-09-21 12:35:26,849 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 5 21) no Hoare annotation was computed. [2020-09-21 12:35:26,850 INFO L268 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-09-21 12:35:26,850 INFO L264 CegarLoopResult]: At program point L11-3(lines 11 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-21 12:35:26,850 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2020-09-21 12:35:26,851 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 5 21) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-21 12:35:26,851 INFO L264 CegarLoopResult]: At program point L16(lines 6 21) the Hoare annotation is: false [2020-09-21 12:35:26,851 INFO L268 CegarLoopResult]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-09-21 12:35:26,851 INFO L264 CegarLoopResult]: At program point L12-3(lines 12 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-21 12:35:26,852 INFO L268 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-09-21 12:35:26,852 INFO L264 CegarLoopResult]: At program point L10-3(lines 10 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-21 12:35:26,852 INFO L268 CegarLoopResult]: For program point L10-4(lines 6 21) no Hoare annotation was computed. [2020-09-21 12:35:26,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:35:26 BoogieIcfgContainer [2020-09-21 12:35:26,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:35:26,881 INFO L168 Benchmark]: Toolchain (without parser) took 2344.70 ms. Allocated memory was 141.0 MB in the beginning and 220.7 MB in the end (delta: 79.7 MB). Free memory was 102.5 MB in the beginning and 110.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,882 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.39 ms. Allocated memory was 141.0 MB in the beginning and 167.8 MB in the end (delta: 26.7 MB). Free memory was 101.7 MB in the beginning and 137.8 MB in the end (delta: -36.1 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,885 INFO L168 Benchmark]: Boogie Preprocessor took 137.38 ms. Allocated memory was 167.8 MB in the beginning and 220.7 MB in the end (delta: 53.0 MB). Free memory was 137.8 MB in the beginning and 204.5 MB in the end (delta: -66.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,886 INFO L168 Benchmark]: RCFGBuilder took 395.44 ms. Allocated memory is still 220.7 MB. Free memory was 204.5 MB in the beginning and 187.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,887 INFO L168 Benchmark]: TraceAbstraction took 1374.09 ms. Allocated memory is still 220.7 MB. Free memory was 187.8 MB in the beginning and 110.5 MB in the end (delta: 77.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:35:26,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.39 ms. Allocated memory was 141.0 MB in the beginning and 167.8 MB in the end (delta: 26.7 MB). Free memory was 101.7 MB in the beginning and 137.8 MB in the end (delta: -36.1 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.38 ms. Allocated memory was 167.8 MB in the beginning and 220.7 MB in the end (delta: 53.0 MB). Free memory was 137.8 MB in the beginning and 204.5 MB in the end (delta: -66.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.44 ms. Allocated memory is still 220.7 MB. Free memory was 204.5 MB in the beginning and 187.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1374.09 ms. Allocated memory is still 220.7 MB. Free memory was 187.8 MB in the beginning and 110.5 MB in the end (delta: 77.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 10]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 34 SDslu, 9 SDs, 0 SdLazy, 31 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 88 HoareAnnotationTreeSize, 8 FomulaSimplifications, 126 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 768 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...