/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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:56:10,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:56:10,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:56:10,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:56:10,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:56:10,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:56:10,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:56:10,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:56:10,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:56:10,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:56:10,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:56:10,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:56:10,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:56:10,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:56:10,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:56:10,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:56:10,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:56:10,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:56:10,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:56:10,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:56:10,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:56:10,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:56:10,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:56:10,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:56:10,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:56:10,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:56:10,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:56:10,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:56:10,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:56:10,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:56:10,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:56:10,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:56:10,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:56:10,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:56:10,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:56:10,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:56:10,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:56:10,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:56:10,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:56:10,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:56:10,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:56:10,467 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:56:10,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:56:10,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:56:10,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:56:10,483 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:56:10,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:56:10,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:56:10,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:56:10,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:56:10,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:56:10,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:56:10,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:56:10,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:56:10,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:56:10,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:56:10,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:56:10,485 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:56:10,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:56:10,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:56:10,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:56:10,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:56:10,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:56:10,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:56:10,487 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:56:10,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:56:10,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:56:10,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:56:10,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:56:10,918 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:56:10,919 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:56:10,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2021-02-22 01:56:11,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ab0e9d0/b11b7be669dd49ed858330b25f98e6d3/FLAG25bb790b0 [2021-02-22 01:56:11,652 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:56:11,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2021-02-22 01:56:11,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ab0e9d0/b11b7be669dd49ed858330b25f98e6d3/FLAG25bb790b0 [2021-02-22 01:56:12,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ab0e9d0/b11b7be669dd49ed858330b25f98e6d3 [2021-02-22 01:56:12,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:56:12,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:56:12,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:12,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:56:12,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:56:12,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7236650f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12, skipping insertion in model container [2021-02-22 01:56:12,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:56:12,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:56:12,321 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.c_1.i[293,306] [2021-02-22 01:56:12,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:12,374 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:56:12,389 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.c_1.i[293,306] [2021-02-22 01:56:12,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:12,413 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:56:12,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12 WrapperNode [2021-02-22 01:56:12,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:12,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:56:12,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:56:12,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:56:12,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (1/1) ... [2021-02-22 01:56:12,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:56:12,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:56:12,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:56:12,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:56:12,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (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 [2021-02-22 01:56:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:56:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:56:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:56:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-22 01:56:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2021-02-22 01:56:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2021-02-22 01:56:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:56:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:56:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:56:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:56:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:56:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-22 01:56:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2021-02-22 01:56:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2021-02-22 01:56:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:56:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:56:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:56:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:56:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:56:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:56:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:56:12,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:56:12,857 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:56:12,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:12 BoogieIcfgContainer [2021-02-22 01:56:12,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:56:12,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:56:12,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:56:12,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:56:12,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:56:12" (1/3) ... [2021-02-22 01:56:12,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d111ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:12, skipping insertion in model container [2021-02-22 01:56:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:12" (2/3) ... [2021-02-22 01:56:12,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d111ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:12, skipping insertion in model container [2021-02-22 01:56:12,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:12" (3/3) ... [2021-02-22 01:56:12,870 INFO L111 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2021-02-22 01:56:12,879 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:56:12,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:56:12,909 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:56:12,975 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:56:12,975 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:56:12,976 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:56:12,976 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:56:12,976 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:56:12,976 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:56:12,976 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:56:12,976 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:56:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-22 01:56:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-22 01:56:13,002 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:13,003 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] [2021-02-22 01:56:13,003 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash 788636395, now seen corresponding path program 1 times [2021-02-22 01:56:13,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:13,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576134462] [2021-02-22 01:56:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:13,130 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:13,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:13,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:13,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:13,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:56:13,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:13,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:56:13,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:13,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:13,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:13,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:13,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:13,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:56:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:13,623 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-22 01:56:13,625 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-22 01:56:13,640 WARN L141 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size [2021-02-22 01:56:13,641 WARN L147 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size 10 [2021-02-22 01:56:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:56:13,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576134462] [2021-02-22 01:56:13,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:13,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 01:56:13,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549896091] [2021-02-22 01:56:13,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 01:56:13,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:13,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 01:56:13,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 01:56:13,696 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2021-02-22 01:56:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:14,088 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2021-02-22 01:56:14,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:56:14,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2021-02-22 01:56:14,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:14,101 INFO L225 Difference]: With dead ends: 58 [2021-02-22 01:56:14,101 INFO L226 Difference]: Without dead ends: 27 [2021-02-22 01:56:14,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:56:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-02-22 01:56:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-02-22 01:56:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-02-22 01:56:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-02-22 01:56:14,179 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2021-02-22 01:56:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:14,179 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-02-22 01:56:14,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 01:56:14,180 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-02-22 01:56:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-22 01:56:14,182 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:14,182 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] [2021-02-22 01:56:14,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:56:14,183 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:14,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1075667755, now seen corresponding path program 1 times [2021-02-22 01:56:14,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:14,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647909304] [2021-02-22 01:56:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:14,198 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:14,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:14,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:14,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:14,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:14,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:14,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:14,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:14,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:56:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:14,382 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-22 01:56:14,383 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-22 01:56:14,401 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-22 01:56:14,403 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-22 01:56:14,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:14,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:56:14,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647909304] [2021-02-22 01:56:14,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:14,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:56:14,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344503941] [2021-02-22 01:56:14,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:56:14,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:14,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:56:14,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:56:14,443 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 6 states. [2021-02-22 01:56:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:14,576 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-02-22 01:56:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:56:14,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-02-22 01:56:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:14,582 INFO L225 Difference]: With dead ends: 27 [2021-02-22 01:56:14,582 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:56:14,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:56:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:56:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:56:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:56:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:56:14,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-02-22 01:56:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:14,590 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:56:14,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:56:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:56:14,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:56:14,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:56:14,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:56:15,038 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:56:15,038 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:56:15,038 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,039 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,039 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|)) [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: true [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-22 01:56:15,040 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 7 10) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 7 10) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:56:15,042 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 34 37) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-22 01:56:15,042 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 34 37) the Hoare annotation is: true [2021-02-22 01:56:15,042 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 34 37) the Hoare annotation is: true [2021-02-22 01:56:15,042 INFO L185 CegarLoopUtils]: At program point abs_intEXIT(lines 17 26) 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))) [2021-02-22 01:56:15,042 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (and (not (= (+ abs_int_~i 3) 0)) (= |abs_int_#in~i| abs_int_~i)) [2021-02-22 01:56:15,043 INFO L185 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-22 01:56:15,043 INFO L192 CegarLoopUtils]: At program point abs_intENTRY(lines 17 26) the Hoare annotation is: true [2021-02-22 01:56:15,043 INFO L185 CegarLoopUtils]: At program point L19(lines 19 25) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-22 01:56:15,043 INFO L185 CegarLoopUtils]: At program point abs_intFINAL(lines 17 26) 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))) [2021-02-22 01:56:15,043 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (<= 1 ~p~0) [2021-02-22 01:56:15,044 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-22 01:56:15,044 INFO L185 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-22 01:56:15,044 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: false [2021-02-22 01:56:15,044 INFO L185 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: (and (<= 1 |firstFunction_#t~ret7|) (<= 1 ~p~0)) [2021-02-22 01:56:15,044 INFO L192 CegarLoopUtils]: At program point L31-3(lines 28 32) the Hoare annotation is: true [2021-02-22 01:56:15,044 INFO L185 CegarLoopUtils]: At program point firstFunctionENTRY(lines 28 32) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-22 01:56:15,044 INFO L192 CegarLoopUtils]: At program point firstFunctionEXIT(lines 28 32) the Hoare annotation is: true [2021-02-22 01:56:15,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:56:15 BoogieIcfgContainer [2021-02-22 01:56:15,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:56:15,064 INFO L168 Benchmark]: Toolchain (without parser) took 3007.67 ms. Allocated memory was 182.5 MB in the beginning and 239.1 MB in the end (delta: 56.6 MB). Free memory was 158.3 MB in the beginning and 107.9 MB in the end (delta: 50.4 MB). Peak memory consumption was 107.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:15,065 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 182.5 MB. Free memory was 155.4 MB in the beginning and 155.4 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:56:15,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.86 ms. Allocated memory is still 182.5 MB. Free memory was 157.0 MB in the beginning and 148.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:15,067 INFO L168 Benchmark]: Boogie Preprocessor took 52.06 ms. Allocated memory is still 182.5 MB. Free memory was 148.0 MB in the beginning and 146.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:15,067 INFO L168 Benchmark]: RCFGBuilder took 390.69 ms. Allocated memory is still 182.5 MB. Free memory was 146.5 MB in the beginning and 133.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:15,068 INFO L168 Benchmark]: TraceAbstraction took 2200.07 ms. Allocated memory was 182.5 MB in the beginning and 239.1 MB in the end (delta: 56.6 MB). Free memory was 132.9 MB in the beginning and 107.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:15,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 182.5 MB. Free memory was 155.4 MB in the beginning and 155.4 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 337.86 ms. Allocated memory is still 182.5 MB. Free memory was 157.0 MB in the beginning and 148.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.06 ms. Allocated memory is still 182.5 MB. Free memory was 148.0 MB in the beginning and 146.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 390.69 ms. Allocated memory is still 182.5 MB. Free memory was 146.5 MB in the beginning and 133.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2200.07 ms. Allocated memory was 182.5 MB in the beginning and 239.1 MB in the end (delta: 56.6 MB). Free memory was 132.9 MB in the beginning and 107.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 7]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 17]: 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: 28]: Procedure Contract for firstFunction Derived contract for procedure firstFunction: 1 - ProcedureContractResult [Line: 34]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 28 SDslu, 120 SDs, 0 SdLazy, 81 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 37 LocationsWithAnnotation, 42 PreInvPairs, 60 NumberOfFragments, 171 HoareAnnotationTreeSize, 42 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 406 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...