/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/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:21:23,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:21:23,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:21:23,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:21:23,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:21:23,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:21:23,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:21:23,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:21:23,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:21:23,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:21:23,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:21:23,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:21:23,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:21:23,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:21:23,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:21:23,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:21:23,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:21:23,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:21:23,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:21:23,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:21:23,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:21:23,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:21:23,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:21:23,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:21:23,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:21:23,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:21:23,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:21:23,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:21:23,878 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 04:21:23,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:21:23,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:21:23,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:21:23,893 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:21:23,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:21:23,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:21:23,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:21:23,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:21:23,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:21:23,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:21:23,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:21:23,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:21:23,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:21:23,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:21:23,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:21:23,897 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:21:23,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:21:23,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:21:23,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:21:23,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:21:23,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:21:23,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:21:23,899 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:21:23,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:21:24,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:21:24,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:21:24,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:21:24,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:21:24,297 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:21:24,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-24 04:21:24,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6552ac220/7dc27cdabe174f529ee2522d106f4c00/FLAG722b5112b [2021-02-24 04:21:25,004 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:21:25,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-24 04:21:25,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6552ac220/7dc27cdabe174f529ee2522d106f4c00/FLAG722b5112b [2021-02-24 04:21:25,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6552ac220/7dc27cdabe174f529ee2522d106f4c00 [2021-02-24 04:21:25,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:21:25,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:21:25,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:25,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:21:25,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:21:25,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11655906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25, skipping insertion in model container [2021-02-24 04:21:25,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:21:25,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:21:25,591 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i[319,332] [2021-02-24 04:21:25,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:25,611 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:21:25,624 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i[319,332] [2021-02-24 04:21:25,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:25,641 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:21:25,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25 WrapperNode [2021-02-24 04:21:25,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:25,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:21:25,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:21:25,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:21:25,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (1/1) ... [2021-02-24 04:21:25,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:21:25,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:21:25,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:21:25,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:21:25,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (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 04:21:25,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:21:25,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:21:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:21:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:21:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2021-02-24 04:21:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2021-02-24 04:21:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:21:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:21:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:21:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:21:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:21:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:21:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2021-02-24 04:21:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2021-02-24 04:21:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:21:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:21:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:21:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:21:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:21:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:21:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:21:26,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:21:26,123 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:21:26,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:26 BoogieIcfgContainer [2021-02-24 04:21:26,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:21:26,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:21:26,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:21:26,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:21:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:21:25" (1/3) ... [2021-02-24 04:21:26,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122ba9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:26, skipping insertion in model container [2021-02-24 04:21:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:25" (2/3) ... [2021-02-24 04:21:26,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122ba9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:26, skipping insertion in model container [2021-02-24 04:21:26,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:26" (3/3) ... [2021-02-24 04:21:26,144 INFO L111 eAbstractionObserver]: Analyzing ICFG oomInt.i [2021-02-24 04:21:26,152 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:21:26,157 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:21:26,227 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:21:26,263 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:21:26,264 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:21:26,264 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:21:26,264 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:21:26,264 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:21:26,264 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:21:26,264 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:21:26,265 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:21:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-02-24 04:21:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:21:26,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:26,302 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 04:21:26,302 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:26,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:26,311 INFO L82 PathProgramCache]: Analyzing trace with hash -193580331, now seen corresponding path program 1 times [2021-02-24 04:21:26,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:26,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314444997] [2021-02-24 04:21:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:26,415 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:26,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:26,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:21:26,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:21:26,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:26,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:26,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:26,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:26,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:26,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:26,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:21:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:26,772 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-24 04:21:26,774 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-24 04:21:26,789 WARN L141 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size [2021-02-24 04:21:26,791 WARN L147 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size 10 [2021-02-24 04:21:26,813 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 04:21:26,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314444997] [2021-02-24 04:21:26,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:26,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:21:26,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211110094] [2021-02-24 04:21:26,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:21:26,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:26,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:21:26,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:21:26,840 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 9 states. [2021-02-24 04:21:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:27,388 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-02-24 04:21:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 04:21:27,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2021-02-24 04:21:27,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:27,401 INFO L225 Difference]: With dead ends: 64 [2021-02-24 04:21:27,401 INFO L226 Difference]: Without dead ends: 28 [2021-02-24 04:21:27,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:21:27,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-02-24 04:21:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-02-24 04:21:27,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-02-24 04:21:27,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-02-24 04:21:27,479 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 27 [2021-02-24 04:21:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:27,481 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-02-24 04:21:27,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:21:27,482 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-02-24 04:21:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:21:27,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:27,484 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 04:21:27,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:21:27,484 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:27,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:27,494 INFO L82 PathProgramCache]: Analyzing trace with hash 114457237, now seen corresponding path program 1 times [2021-02-24 04:21:27,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:27,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615923867] [2021-02-24 04:21:27,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:27,502 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:27,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:27,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:27,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:27,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:27,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:27,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:27,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:21:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:27,654 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-24 04:21:27,655 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-24 04:21:27,674 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-24 04:21:27,675 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-24 04:21:27,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:27,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:27,720 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 04:21:27,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615923867] [2021-02-24 04:21:27,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:27,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:21:27,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485715721] [2021-02-24 04:21:27,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:21:27,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:27,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:21:27,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:21:27,731 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 6 states. [2021-02-24 04:21:27,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:27,908 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-02-24 04:21:27,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:21:27,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2021-02-24 04:21:27,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:27,911 INFO L225 Difference]: With dead ends: 28 [2021-02-24 04:21:27,911 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:21:27,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:21:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:21:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:21:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:21:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:21:27,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-02-24 04:21:27,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:27,916 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:21:27,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:21:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:21:27,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:21:27,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:21:27,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:21:28,550 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 04:21:28,550 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 04:21:28,551 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 04:21:28,551 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,551 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,551 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,551 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,551 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,552 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,552 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,552 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)|) (= ~p~0 |old(~p~0)|) (= |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 04:21:28,552 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:21:28,553 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 35 38) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-24 04:21:28,554 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 35 38) the Hoare annotation is: true [2021-02-24 04:21:28,554 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 35 38) the Hoare annotation is: true [2021-02-24 04:21:28,554 INFO L185 CegarLoopUtils]: At program point abs_intEXIT(lines 18 27) the Hoare annotation is: (let ((.cse0 (= (+ abs_int_~i 3) 0))) (or (and (not .cse0) (= |abs_int_#in~i| abs_int_~i)) (and (or (not (= (+ |abs_int_#in~i| 3) 0)) (<= 3 |abs_int_#res|)) .cse0))) [2021-02-24 04:21:28,554 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (and (not (= (+ abs_int_~i 3) 0)) (= |abs_int_#in~i| abs_int_~i)) [2021-02-24 04:21:28,554 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-24 04:21:28,555 INFO L185 CegarLoopUtils]: At program point L20(lines 20 26) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-24 04:21:28,555 INFO L192 CegarLoopUtils]: At program point abs_intENTRY(lines 18 27) the Hoare annotation is: true [2021-02-24 04:21:28,555 INFO L185 CegarLoopUtils]: At program point abs_intFINAL(lines 18 27) the Hoare annotation is: (let ((.cse0 (= (+ abs_int_~i 3) 0))) (or (and (not .cse0) (= |abs_int_#in~i| abs_int_~i)) (and (or (not (= (+ |abs_int_#in~i| 3) 0)) (<= 3 |abs_int_#res|)) .cse0))) [2021-02-24 04:21:28,555 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (<= 1 ~p~0) [2021-02-24 04:21:28,555 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-24 04:21:28,556 INFO L185 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-24 04:21:28,556 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: (and (<= 1 |firstFunction_#t~ret7|) (<= 1 ~p~0)) [2021-02-24 04:21:28,556 INFO L185 CegarLoopUtils]: At program point firstFunctionENTRY(lines 29 33) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-24 04:21:28,556 INFO L192 CegarLoopUtils]: At program point firstFunctionFINAL(lines 29 33) the Hoare annotation is: true [2021-02-24 04:21:28,556 INFO L192 CegarLoopUtils]: At program point firstFunctionEXIT(lines 29 33) the Hoare annotation is: true [2021-02-24 04:21:28,556 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 14) the Hoare annotation is: true [2021-02-24 04:21:28,557 INFO L185 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-24 04:21:28,557 INFO L185 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-24 04:21:28,557 INFO L185 CegarLoopUtils]: At program point L10(lines 10 13) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-24 04:21:28,557 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 8 14) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-24 04:21:28,557 INFO L185 CegarLoopUtils]: At program point L10-2(lines 8 14) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-24 04:21:28,558 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-24 04:21:28,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:21:28 BoogieIcfgContainer [2021-02-24 04:21:28,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:21:28,578 INFO L168 Benchmark]: Toolchain (without parser) took 3166.94 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 153.6 MB in the beginning and 191.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 116.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:28,579 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 176.2 MB. Free memory is still 149.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:21:28,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.69 ms. Allocated memory is still 176.2 MB. Free memory was 152.3 MB in the beginning and 143.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:28,581 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 176.2 MB. Free memory was 143.3 MB in the beginning and 141.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:28,582 INFO L168 Benchmark]: RCFGBuilder took 453.80 ms. Allocated memory is still 176.2 MB. Free memory was 141.9 MB in the beginning and 128.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:28,583 INFO L168 Benchmark]: TraceAbstraction took 2443.44 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 127.9 MB in the beginning and 191.2 MB in the end (delta: -63.4 MB). Peak memory consumption was 91.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:28,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 176.2 MB. Free memory is still 149.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 219.69 ms. Allocated memory is still 176.2 MB. Free memory was 152.3 MB in the beginning and 143.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 176.2 MB. Free memory was 143.3 MB in the beginning and 141.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 453.80 ms. Allocated memory is still 176.2 MB. Free memory was 141.9 MB in the beginning and 128.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2443.44 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 127.9 MB in the beginning and 191.2 MB in the end (delta: -63.4 MB). Peak memory consumption was 91.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 18]: Procedure Contract for abs_int Derived contract for procedure abs_int: (!(i + 3 == 0) && \old(i) == i) || ((!(\old(i) + 3 == 0) || 3 <= \result) && i + 3 == 0) - ProcedureContractResult [Line: 29]: Procedure Contract for firstFunction Derived contract for procedure firstFunction: 1 - ProcedureContractResult [Line: 35]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (!(1 <= p) || \old(i) == 0) || !(i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 44 SDslu, 165 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 38 LocationsWithAnnotation, 45 PreInvPairs, 67 NumberOfFragments, 226 HoareAnnotationTreeSize, 45 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 577 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...