/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/test_union_cast-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:23:17,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:23:17,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:23:17,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:23:17,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:23:17,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:23:17,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:23:17,473 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 04:23:17,486 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:23:17,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:23:17,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:23:17,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:23:17,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:23:17,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:23:17,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:23:17,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:23:17,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:23:17,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:23:17,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:23:17,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:23:17,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:23:17,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:23:17,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:23:17,491 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:23:17,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:23:17,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:23:17,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:23:17,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:23:17,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:23:17,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:23:17,493 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:23:17,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:23:17,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:23:17,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:23:17,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:23:17,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:23:17,896 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:23:17,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union_cast-1.i [2021-02-24 04:23:17,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b19f06c/5d3b2248238b48509141a82d3f34806e/FLAG44adf8482 [2021-02-24 04:23:18,668 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:23:18,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union_cast-1.i [2021-02-24 04:23:18,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b19f06c/5d3b2248238b48509141a82d3f34806e/FLAG44adf8482 [2021-02-24 04:23:19,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b19f06c/5d3b2248238b48509141a82d3f34806e [2021-02-24 04:23:19,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:23:19,023 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:23:19,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:23:19,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:23:19,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:23:19,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3682791f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19, skipping insertion in model container [2021-02-24 04:23:19,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:23:19,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:23:19,255 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/test_union_cast-1.i[817,830] [2021-02-24 04:23:19,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:23:19,279 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:23:19,294 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/test_union_cast-1.i[817,830] [2021-02-24 04:23:19,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:23:19,319 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:23:19,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19 WrapperNode [2021-02-24 04:23:19,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:23:19,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:23:19,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:23:19,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:23:19,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (1/1) ... [2021-02-24 04:23:19,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:23:19,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:23:19,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:23:19,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:23:19,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (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 04:23:19,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:23:19,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:23:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:23:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:23:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:23:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:23:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:23:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:23:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:23:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:23:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:23:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:23:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:23:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-24 04:23:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:23:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:23:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:23:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:23:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:23:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:23:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-24 04:23:19,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:23:19,822 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:23:19,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:23:19 BoogieIcfgContainer [2021-02-24 04:23:19,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:23:19,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:23:19,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:23:19,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:23:19,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:23:19" (1/3) ... [2021-02-24 04:23:19,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de01c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:23:19, skipping insertion in model container [2021-02-24 04:23:19,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:23:19" (2/3) ... [2021-02-24 04:23:19,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de01c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:23:19, skipping insertion in model container [2021-02-24 04:23:19,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:23:19" (3/3) ... [2021-02-24 04:23:19,859 INFO L111 eAbstractionObserver]: Analyzing ICFG test_union_cast-1.i [2021-02-24 04:23:19,881 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:23:19,891 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:23:19,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:23:19,954 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:23:19,955 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:23:19,955 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:23:19,955 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:23:19,955 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:23:19,955 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:23:19,955 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:23:19,956 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:23:19,971 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-02-24 04:23:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-24 04:23:19,980 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:23:19,981 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] [2021-02-24 04:23:19,982 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:23:19,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:23:19,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1395890468, now seen corresponding path program 1 times [2021-02-24 04:23:20,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:23:20,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830408742] [2021-02-24 04:23:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:23:20,110 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:23:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:23:20,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:23:20,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:23:20,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:23:20,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:23:20,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:23:20,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:23:20,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:23:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:23:20,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:23:20,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:23:20,620 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 04:23:20,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830408742] [2021-02-24 04:23:20,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:23:20,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:23:20,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425246975] [2021-02-24 04:23:20,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:23:20,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:23:20,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:23:20,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:23:20,657 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 7 states. [2021-02-24 04:23:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:23:20,910 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-02-24 04:23:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:23:20,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2021-02-24 04:23:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:23:20,921 INFO L225 Difference]: With dead ends: 42 [2021-02-24 04:23:20,921 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:23:20,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:23:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:23:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:23:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:23:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:23:20,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-02-24 04:23:20,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:23:20,957 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:23:20,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:23:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:23:20,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:23:20,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:23:20,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:23:21,172 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-24 04:23:21,173 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-24 04:23:21,173 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-24 04:23:21,173 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-24 04:23:21,173 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-24 04:23:21,173 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-24 04:23:21,174 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~CURRENTLY_SAFE~0 |old(~CURRENTLY_SAFE~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-24 04:23:21,175 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-24 04:23:21,175 INFO L192 CegarLoopUtils]: At program point L12-4(line 12) the Hoare annotation is: true [2021-02-24 04:23:21,175 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,175 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,175 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,176 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,176 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:23:21,176 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 35 41) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-24 04:23:21,176 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 35 41) the Hoare annotation is: true [2021-02-24 04:23:21,176 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 35 41) the Hoare annotation is: true [2021-02-24 04:23:21,177 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) [2021-02-24 04:23:21,177 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) (= |main_#t~mem3| 10)) [2021-02-24 04:23:21,177 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) [2021-02-24 04:23:21,178 INFO L185 CegarLoopUtils]: At program point L39-1(line 39) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) (= |main_#t~mem3| 10)) [2021-02-24 04:23:21,178 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-24 04:23:21,178 INFO L192 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: true [2021-02-24 04:23:21,178 INFO L185 CegarLoopUtils]: At program point L36-1(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) [2021-02-24 04:23:21,178 INFO L185 CegarLoopUtils]: At program point L36-2(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|) 10) [2021-02-24 04:23:21,179 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:23:21,179 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 13 18) the Hoare annotation is: true [2021-02-24 04:23:21,179 INFO L185 CegarLoopUtils]: At program point L14(lines 14 16) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:23:21,179 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:23:21,179 INFO L185 CegarLoopUtils]: At program point L14-2(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:23:21,180 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:23:21,180 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:23:21,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:23:21 BoogieIcfgContainer [2021-02-24 04:23:21,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:23:21,201 INFO L168 Benchmark]: Toolchain (without parser) took 2191.26 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 115.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 58.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:23:21,202 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.4 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:23:21,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:23:21,204 INFO L168 Benchmark]: Boogie Preprocessor took 39.34 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:23:21,205 INFO L168 Benchmark]: RCFGBuilder took 467.15 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 132.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:23:21,206 INFO L168 Benchmark]: TraceAbstraction took 1365.49 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 115.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:23:21,210 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 151.0 MB. Free memory was 124.4 MB in the beginning and 124.4 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 290.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.34 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 467.15 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 132.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1365.49 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 115.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 35]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 12 SDslu, 79 SDs, 0 SdLazy, 46 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 42 NumberOfFragments, 136 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 32 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...