/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:15:39,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:15:39,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:15:39,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:15:39,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:15:39,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:15:39,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:15:39,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:15:39,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:15:39,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:15:39,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:15:39,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:15:39,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:15:39,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:15:39,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:15:39,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:15:39,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:15:39,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:15:39,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:15:39,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:15:39,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:15:39,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:15:39,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:15:39,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:15:39,838 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:15:39,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:15:39,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:15:39,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:15:39,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:15:39,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:15:39,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:15:39,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:15:39,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:15:39,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:15:39,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:15:39,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:15:39,842 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:15:39,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:15:39,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:15:39,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:15:39,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:15:39,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:15:39,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:15:39,845 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:15:39,846 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:15:40,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:15:40,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:15:40,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:15:40,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:15:40,303 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:15:40,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2021-02-24 04:15:40,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ccddfd2/7c32fb85150641b5ae814e726e91a38c/FLAGc784094d2 [2021-02-24 04:15:41,086 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:15:41,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2021-02-24 04:15:41,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ccddfd2/7c32fb85150641b5ae814e726e91a38c/FLAGc784094d2 [2021-02-24 04:15:41,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ccddfd2/7c32fb85150641b5ae814e726e91a38c [2021-02-24 04:15:41,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:15:41,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:15:41,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:15:41,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:15:41,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:15:41,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37317fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41, skipping insertion in model container [2021-02-24 04:15:41,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:15:41,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:15:41,332 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c[628,641] [2021-02-24 04:15:41,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:15:41,348 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:15:41,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c[628,641] [2021-02-24 04:15:41,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:15:41,389 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:15:41,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41 WrapperNode [2021-02-24 04:15:41,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:15:41,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:15:41,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:15:41,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:15:41,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... [2021-02-24 04:15:41,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:15:41,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:15:41,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:15:41,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:15:41,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-24 04:15:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:15:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:15:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:15:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-02-24 04:15:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:15:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-24 04:15:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:15:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:15:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:15:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:15:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-02-24 04:15:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:15:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:15:41,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:15:41,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:15:42,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:42 BoogieIcfgContainer [2021-02-24 04:15:42,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:15:42,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:15:42,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:15:42,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:15:42,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:15:41" (1/3) ... [2021-02-24 04:15:42,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514283dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:42, skipping insertion in model container [2021-02-24 04:15:42,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:41" (2/3) ... [2021-02-24 04:15:42,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514283dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:42, skipping insertion in model container [2021-02-24 04:15:42,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:42" (3/3) ... [2021-02-24 04:15:42,016 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2021-02-24 04:15:42,025 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:15:42,030 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:15:42,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:15:42,089 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:15:42,090 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:15:42,090 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:15:42,090 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:15:42,091 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:15:42,091 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:15:42,092 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:15:42,092 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:15:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-02-24 04:15:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:15:42,132 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:42,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:42,134 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:42,145 INFO L82 PathProgramCache]: Analyzing trace with hash 546170876, now seen corresponding path program 1 times [2021-02-24 04:15:42,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:42,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941357523] [2021-02-24 04:15:42,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:42,257 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:42,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:15:42,694 WARN L141 QuantifierPusher]: treesize reduction 24, result has 81.8 percent of original size [2021-02-24 04:15:42,704 WARN L147 QuantifierPusher]: treesize reduction 24, result has 81.8 percent of original size 108 [2021-02-24 04:15:42,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:42,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:42,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-24 04:15:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:42,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:15:42,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:15:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:15:43,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941357523] [2021-02-24 04:15:43,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:43,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:15:43,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773634610] [2021-02-24 04:15:43,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:15:43,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:43,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:15:43,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:15:43,083 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 9 states. [2021-02-24 04:15:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:43,614 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2021-02-24 04:15:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:15:43,616 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2021-02-24 04:15:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:43,627 INFO L225 Difference]: With dead ends: 49 [2021-02-24 04:15:43,628 INFO L226 Difference]: Without dead ends: 33 [2021-02-24 04:15:43,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:15:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-24 04:15:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-02-24 04:15:43,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-24 04:15:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-02-24 04:15:43,702 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 27 [2021-02-24 04:15:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:43,702 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-02-24 04:15:43,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:15:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-02-24 04:15:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:15:43,705 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:43,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:43,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:15:43,706 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1718606271, now seen corresponding path program 1 times [2021-02-24 04:15:43,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:43,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609538760] [2021-02-24 04:15:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:43,711 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:43,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:43,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:15:43,832 WARN L141 QuantifierPusher]: treesize reduction 38, result has 67.2 percent of original size [2021-02-24 04:15:43,836 WARN L147 QuantifierPusher]: treesize reduction 38, result has 67.2 percent of original size 78 [2021-02-24 04:15:43,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:43,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:43,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-24 04:15:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:43,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:43,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:44,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:15:44,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:15:44,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:44,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:15:44,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:15:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-24 04:15:44,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609538760] [2021-02-24 04:15:44,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:44,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 04:15:44,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064460488] [2021-02-24 04:15:44,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 04:15:44,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:44,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 04:15:44,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-02-24 04:15:44,140 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 11 states. [2021-02-24 04:15:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:44,749 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-02-24 04:15:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:15:44,749 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2021-02-24 04:15:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:44,750 INFO L225 Difference]: With dead ends: 33 [2021-02-24 04:15:44,750 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:15:44,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2021-02-24 04:15:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:15:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:15:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:15:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:15:44,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2021-02-24 04:15:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:44,754 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:15:44,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 04:15:44,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:15:44,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:15:44,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:15:44,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:15:45,228 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2021-02-24 04:15:45,673 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-24 04:15:45,673 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-24 04:15:45,673 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-24 04:15:45,673 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,674 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,674 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,674 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,674 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,674 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:15:45,674 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,675 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,676 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:15:45,676 INFO L185 CegarLoopUtils]: At program point sumEXIT(lines 6 12) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296))))) [2021-02-24 04:15:45,676 INFO L185 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2021-02-24 04:15:45,676 INFO L185 CegarLoopUtils]: At program point L10-1(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#t~ret7| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296)))) (= sum_~m |sum_#in~m|)) [2021-02-24 04:15:45,676 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#in~n| (* 4294967296 (div |sum_#in~n| 4294967296)))) [2021-02-24 04:15:45,677 INFO L185 CegarLoopUtils]: At program point L10-2(line 10) the Hoare annotation is: (let ((.cse0 (* |sum_#in~n| (- 1))) (.cse1 (* |sum_#in~m| (- 1)))) (and (= sum_~n |sum_#in~n|) (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#t~ret7| .cse0 .cse1) 4294967296)))) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| .cse0 .cse1) 4294967296)))))) [2021-02-24 04:15:45,677 INFO L185 CegarLoopUtils]: At program point L7(lines 7 11) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2021-02-24 04:15:45,677 INFO L185 CegarLoopUtils]: At program point L6(lines 6 12) the Hoare annotation is: (= sum_~n |sum_#in~n|) [2021-02-24 04:15:45,677 INFO L185 CegarLoopUtils]: At program point sumFINAL(lines 6 12) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296))))) [2021-02-24 04:15:45,678 INFO L192 CegarLoopUtils]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2021-02-24 04:15:45,678 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: false [2021-02-24 04:15:45,678 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 14 21) the Hoare annotation is: true [2021-02-24 04:15:45,678 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 14 21) the Hoare annotation is: true [2021-02-24 04:15:45,678 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: false [2021-02-24 04:15:45,678 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div (+ main_~a~0 main_~b~0) 4294967296))) (.cse0 (+ (* 4294967296 (div main_~result~0 4294967296)) main_~a~0 main_~b~0))) (and (< .cse0 (+ main_~result~0 .cse1 1)) (<= (+ main_~result~0 .cse1) .cse0))) [2021-02-24 04:15:45,679 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: false [2021-02-24 04:15:45,679 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-24 04:15:45,679 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-24 04:15:45,679 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (<= (+ main_~a~0 main_~b~0) (+ |main_#t~ret10| (* 4294967296 (div (+ (* |main_#t~ret10| (- 1)) main_~a~0 main_~b~0) 4294967296)))) [2021-02-24 04:15:45,679 INFO L192 CegarLoopUtils]: At program point L18-2(lines 14 21) the Hoare annotation is: true [2021-02-24 04:15:45,680 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-24 04:15:45,680 INFO L192 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: true [2021-02-24 04:15:45,680 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (let ((.cse2 (+ main_~a~0 main_~b~0))) (let ((.cse1 (* 4294967296 (div .cse2 4294967296))) (.cse0 (+ (* 4294967296 (div main_~result~0 4294967296)) main_~a~0 main_~b~0))) (and (< .cse0 (+ main_~result~0 .cse1 1)) (<= (+ main_~result~0 .cse1) .cse0) (<= .cse2 (+ |main_#t~ret10| (* 4294967296 (div (+ (* |main_#t~ret10| (- 1)) main_~a~0 main_~b~0) 4294967296))))))) [2021-02-24 04:15:45,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:15:45 BoogieIcfgContainer [2021-02-24 04:15:45,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:15:45,700 INFO L168 Benchmark]: Toolchain (without parser) took 4575.20 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 128.9 MB in the beginning and 134.4 MB in the end (delta: -5.5 MB). Peak memory consumption was 95.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:15:45,701 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 139.4 MB in the beginning and 139.3 MB in the end (delta: 105.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:15:45,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.33 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 118.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:15:45,703 INFO L168 Benchmark]: Boogie Preprocessor took 40.45 ms. Allocated memory is still 153.1 MB. Free memory was 118.5 MB in the beginning and 117.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:15:45,704 INFO L168 Benchmark]: RCFGBuilder took 568.87 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 129.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:15:45,705 INFO L168 Benchmark]: TraceAbstraction took 3695.58 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.3 MB in the beginning and 134.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 95.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:15:45,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 139.4 MB in the beginning and 139.3 MB in the end (delta: 105.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 250.33 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 118.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.45 ms. Allocated memory is still 153.1 MB. Free memory was 118.5 MB in the beginning and 117.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 568.87 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 129.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3695.58 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.3 MB in the beginning and 134.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 95.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 6]: Procedure Contract for sum Derived contract for procedure sum: (n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m) + 4294967296 * ((\result + \old(n) * -1 + \old(m) * -1) / 4294967296) - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 70 SDslu, 165 SDs, 0 SdLazy, 224 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 45 PreInvPairs, 61 NumberOfFragments, 307 HoareAnnotationTreeSize, 45 FomulaSimplifications, 316 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1083 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...