/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:37:54,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:37:54,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:37:54,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 20:37:54,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:37:54,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:37:54,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:37:54,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:37:54,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:37:54,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:37:54,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:37:54,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:37:54,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:37:54,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:37:54,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:37:54,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:37:54,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:37:54,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:37:54,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:37:54,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:37:54,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:37:54,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:37:54,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:37:54,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:37:54,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:37:54,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:37:54,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:37:54,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:37:54,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:37:54,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:37:54,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:37:54,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:37:54,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:37:54,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:37:54,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:37:54,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:37:54,280 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:37:54,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:37:54,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:37:54,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:37:54,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:37:54,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:37:54,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:37:54,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:37:54,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:37:54,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:37:54,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:37:54,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:37:54,696 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:37:54,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-21 20:37:54,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26637527/35d061f049c049258d8fe6353c89f7d9/FLAG74eb1e6f0 [2021-02-21 20:37:55,493 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:37:55,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-21 20:37:55,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26637527/35d061f049c049258d8fe6353c89f7d9/FLAG74eb1e6f0 [2021-02-21 20:37:55,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26637527/35d061f049c049258d8fe6353c89f7d9 [2021-02-21 20:37:55,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:37:55,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:37:55,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:37:55,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:37:55,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:37:55,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:37:55" (1/1) ... [2021-02-21 20:37:55,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ce8028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:55, skipping insertion in model container [2021-02-21 20:37:55,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:37:55" (1/1) ... [2021-02-21 20:37:55,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:37:55,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:37:56,042 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/mutex_lock_int.c_1.i[297,310] [2021-02-21 20:37:56,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:37:56,070 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:37:56,082 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/mutex_lock_int.c_1.i[297,310] [2021-02-21 20:37:56,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:37:56,101 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:37:56,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56 WrapperNode [2021-02-21 20:37:56,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:37:56,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:37:56,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:37:56,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:37:56,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (1/1) ... [2021-02-21 20:37:56,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:37:56,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:37:56,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:37:56,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:37:56,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (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 [2021-02-21 20:37:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:37:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:37:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:37:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-02-21 20:37:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-21 20:37:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-21 20:37:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:37:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:37:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:37:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:37:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:37:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-02-21 20:37:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-21 20:37:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:37:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:37:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-21 20:37:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:37:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:37:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:37:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:37:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:37:56,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:37:56,655 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 20:37:56,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:37:56 BoogieIcfgContainer [2021-02-21 20:37:56,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:37:56,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:37:56,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:37:56,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:37:56,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:37:55" (1/3) ... [2021-02-21 20:37:56,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e88e0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:37:56, skipping insertion in model container [2021-02-21 20:37:56,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:37:56" (2/3) ... [2021-02-21 20:37:56,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e88e0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:37:56, skipping insertion in model container [2021-02-21 20:37:56,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:37:56" (3/3) ... [2021-02-21 20:37:56,706 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2021-02-21 20:37:56,728 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:37:56,734 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:37:56,759 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:37:56,790 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:37:56,791 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:37:56,791 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:37:56,791 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:37:56,791 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:37:56,791 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:37:56,792 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:37:56,792 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:37:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-21 20:37:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-21 20:37:56,821 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:37:56,822 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] [2021-02-21 20:37:56,823 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:37:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:37:56,830 INFO L82 PathProgramCache]: Analyzing trace with hash -859708392, now seen corresponding path program 1 times [2021-02-21 20:37:56,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:37:56,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365565594] [2021-02-21 20:37:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:37:56,966 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:37:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:37:57,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:37:57,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:37:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:37:57,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:37:57,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365565594] [2021-02-21 20:37:57,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:37:57,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 20:37:57,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977153598] [2021-02-21 20:37:57,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 20:37:57,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:37:57,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 20:37:57,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 20:37:57,364 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 7 states. [2021-02-21 20:37:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:37:57,648 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2021-02-21 20:37:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 20:37:57,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-02-21 20:37:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:37:57,658 INFO L225 Difference]: With dead ends: 66 [2021-02-21 20:37:57,659 INFO L226 Difference]: Without dead ends: 30 [2021-02-21 20:37:57,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-21 20:37:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-02-21 20:37:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-02-21 20:37:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-02-21 20:37:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2021-02-21 20:37:57,736 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 21 [2021-02-21 20:37:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:37:57,737 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2021-02-21 20:37:57,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 20:37:57,737 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2021-02-21 20:37:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-21 20:37:57,739 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:37:57,739 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, 1, 1] [2021-02-21 20:37:57,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:37:57,740 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:37:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:37:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2091188958, now seen corresponding path program 1 times [2021-02-21 20:37:57,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:37:57,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147765446] [2021-02-21 20:37:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:37:57,744 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:37:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:37:57,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:37:57,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:37:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:37:57,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:37:57,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 20:37:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:37:57,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:37:57,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:37:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:37:57,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147765446] [2021-02-21 20:37:57,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:37:57,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 20:37:57,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309681630] [2021-02-21 20:37:57,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 20:37:57,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:37:57,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 20:37:57,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-21 20:37:57,923 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 10 states. [2021-02-21 20:37:58,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:37:58,264 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-02-21 20:37:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 20:37:58,265 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2021-02-21 20:37:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:37:58,267 INFO L225 Difference]: With dead ends: 30 [2021-02-21 20:37:58,267 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 20:37:58,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-02-21 20:37:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 20:37:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 20:37:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 20:37:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 20:37:58,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-02-21 20:37:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:37:58,275 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 20:37:58,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 20:37:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 20:37:58,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 20:37:58,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:37:58,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 20:37:58,841 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 20:37:58,842 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 20:37:58,842 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 20:37:58,842 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) (and (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1))) [2021-02-21 20:37:58,842 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: (or (and (= |#memory_int| |old(#memory_int)|) (= |mutex_unlock_#t~mem8| 1) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1)) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2021-02-21 20:37:58,843 INFO L185 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-21 20:37:58,843 INFO L185 CegarLoopUtils]: At program point L26-3(line 26) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-21 20:37:58,843 INFO L192 CegarLoopUtils]: At program point L26-5(line 26) the Hoare annotation is: true [2021-02-21 20:37:58,843 INFO L192 CegarLoopUtils]: At program point L26-6(line 26) the Hoare annotation is: true [2021-02-21 20:37:58,844 INFO L185 CegarLoopUtils]: At program point mutex_unlockENTRY(lines 24 28) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2021-02-21 20:37:58,844 INFO L192 CegarLoopUtils]: At program point mutex_unlockEXIT(lines 24 28) the Hoare annotation is: true [2021-02-21 20:37:58,845 INFO L192 CegarLoopUtils]: At program point mutex_unlockFINAL(lines 24 28) the Hoare annotation is: true [2021-02-21 20:37:58,845 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,846 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,846 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,847 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,847 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,847 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,848 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:37:58,848 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,848 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 20:37:58,849 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,849 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-21 20:37:58,852 INFO L192 CegarLoopUtils]: At program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: true [2021-02-21 20:37:58,853 INFO L192 CegarLoopUtils]: At program point errEXIT(lines 15 16) the Hoare annotation is: true [2021-02-21 20:37:58,854 INFO L192 CegarLoopUtils]: At program point errENTRY(lines 15 16) the Hoare annotation is: true [2021-02-21 20:37:58,854 INFO L192 CegarLoopUtils]: At program point errFINAL(lines 15 16) the Hoare annotation is: true [2021-02-21 20:37:58,859 INFO L185 CegarLoopUtils]: At program point mutex_lockENTRY(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= |#memory_int| |old(#memory_int)|)) [2021-02-21 20:37:58,859 INFO L185 CegarLoopUtils]: At program point mutex_lockEXIT(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2021-02-21 20:37:58,860 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2021-02-21 20:37:58,860 INFO L185 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem7| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2021-02-21 20:37:58,860 INFO L185 CegarLoopUtils]: At program point L20-2(line 20) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-21 20:37:58,861 INFO L185 CegarLoopUtils]: At program point L20-3(line 20) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-21 20:37:58,861 INFO L185 CegarLoopUtils]: At program point L20-5(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem7| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2021-02-21 20:37:58,861 INFO L185 CegarLoopUtils]: At program point L20-6(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2021-02-21 20:37:58,861 INFO L185 CegarLoopUtils]: At program point mutex_lockFINAL(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2021-02-21 20:37:58,862 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,862 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,862 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,862 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 20:37:58,862 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2021-02-21 20:37:58,862 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-21 20:37:58,863 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-21 20:37:58,863 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 30 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:37:58,864 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 30 42) the Hoare annotation is: true [2021-02-21 20:37:58,864 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 30 42) the Hoare annotation is: true [2021-02-21 20:37:58,865 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-21 20:37:58,865 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2021-02-21 20:37:58,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:37:58 BoogieIcfgContainer [2021-02-21 20:37:58,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:37:58,890 INFO L168 Benchmark]: Toolchain (without parser) took 3033.64 ms. Allocated memory was 155.2 MB in the beginning and 195.0 MB in the end (delta: 39.8 MB). Free memory was 131.8 MB in the beginning and 82.7 MB in the end (delta: 49.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 8.0 GB. [2021-02-21 20:37:58,891 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:37:58,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.63 ms. Allocated memory is still 155.2 MB. Free memory was 130.7 MB in the beginning and 121.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:37:58,894 INFO L168 Benchmark]: Boogie Preprocessor took 35.55 ms. Allocated memory is still 155.2 MB. Free memory was 121.4 MB in the beginning and 120.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:37:58,896 INFO L168 Benchmark]: RCFGBuilder took 521.72 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 136.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:37:58,902 INFO L168 Benchmark]: TraceAbstraction took 2199.37 ms. Allocated memory was 155.2 MB in the beginning and 195.0 MB in the end (delta: 39.8 MB). Free memory was 136.5 MB in the beginning and 82.7 MB in the end (delta: 53.8 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. [2021-02-21 20:37:58,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.63 ms. Allocated memory is still 155.2 MB. Free memory was 130.7 MB in the beginning and 121.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.55 ms. Allocated memory is still 155.2 MB. Free memory was 121.4 MB in the beginning and 120.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 521.72 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 136.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2199.37 ms. Allocated memory was 155.2 MB in the beginning and 195.0 MB in the end (delta: 39.8 MB). Free memory was 136.5 MB in the beginning and 82.7 MB in the end (delta: 53.8 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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: 24]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for err Derived contract for procedure err: 1 - ProcedureContractResult [Line: 18]: Procedure Contract for mutex_lock Derived contract for procedure mutex_lock: !(\old(unknown-#memory_int-unknown)[a][a] == 0) || ((a == a && a == a) && unknown-#memory_int-unknown[a][a] == 1) - ProcedureContractResult [Line: 30]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 48 SDslu, 103 SDs, 0 SdLazy, 227 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 45 LocationsWithAnnotation, 64 PreInvPairs, 77 NumberOfFragments, 311 HoareAnnotationTreeSize, 64 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 587 FormulaSimplificationTreeSizeReductionInter, 0.3s 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...