/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_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:05:34,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:05:34,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:05:34,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:05:34,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:05:34,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:05:34,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:05:34,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:05:34,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:05:34,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:05:34,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:05:34,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:05:34,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:05:34,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:05:34,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:05:34,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:05:34,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:05:34,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:05:34,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:05:34,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:05:34,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:05:34,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:05:34,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:05:34,371 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:05:34,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:05:34,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:05:34,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:05:34,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:05:34,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:05:34,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:05:34,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:05:34,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:05:34,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:05:34,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:05:34,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:05:34,851 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:05:34,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2021-02-23 18:05:34,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ea38f1c/0a2148abb45c42429b5e7f9ea602d6aa/FLAGbf2c37ed6 [2021-02-23 18:05:35,605 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:05:35,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2021-02-23 18:05:35,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ea38f1c/0a2148abb45c42429b5e7f9ea602d6aa/FLAGbf2c37ed6 [2021-02-23 18:05:35,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ea38f1c/0a2148abb45c42429b5e7f9ea602d6aa [2021-02-23 18:05:35,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:05:35,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:05:35,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:35,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:05:35,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:05:35,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:35" (1/1) ... [2021-02-23 18:05:35,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395eecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:35, skipping insertion in model container [2021-02-23 18:05:35,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:35" (1/1) ... [2021-02-23 18:05:36,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:05:36,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:05:36,171 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_struct.c_1.i[299,312] [2021-02-23 18:05:36,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:36,203 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:05:36,218 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_struct.c_1.i[299,312] [2021-02-23 18:05:36,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:36,241 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:05:36,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36 WrapperNode [2021-02-23 18:05:36,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:36,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:05:36,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:05:36,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:05:36,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (1/1) ... [2021-02-23 18:05:36,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:05:36,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:05:36,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:05:36,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:05:36,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (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 [2021-02-23 18:05:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:05:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:05:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:05:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-02-23 18:05:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-23 18:05:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-23 18:05:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:05:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:05:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:05:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:05:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:05:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-02-23 18:05:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-23 18:05:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:05:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:05:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-23 18:05:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:05:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:05:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:05:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:05:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:05:36,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:05:36,958 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 18:05:36,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:36 BoogieIcfgContainer [2021-02-23 18:05:36,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:05:36,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:05:36,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:05:36,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:05:36,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:05:35" (1/3) ... [2021-02-23 18:05:36,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1765845f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:36, skipping insertion in model container [2021-02-23 18:05:36,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:36" (2/3) ... [2021-02-23 18:05:36,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1765845f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:36, skipping insertion in model container [2021-02-23 18:05:36,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:36" (3/3) ... [2021-02-23 18:05:36,971 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2021-02-23 18:05:36,979 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:05:36,984 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:05:37,007 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:05:37,044 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:05:37,044 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:05:37,044 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:05:37,044 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:05:37,045 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:05:37,045 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:05:37,045 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:05:37,045 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:05:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-23 18:05:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-23 18:05:37,086 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:05:37,087 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] [2021-02-23 18:05:37,087 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:05:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:05:37,098 INFO L82 PathProgramCache]: Analyzing trace with hash -859708392, now seen corresponding path program 1 times [2021-02-23 18:05:37,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:05:37,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224998307] [2021-02-23 18:05:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:05:37,206 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:05:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:37,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:37,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:37,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:37,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:37,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:05:37,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:37,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:05:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:37,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:37,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:05:37,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224998307] [2021-02-23 18:05:37,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:05:37,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:05:37,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552797503] [2021-02-23 18:05:37,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:05:37,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:05:37,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:05:37,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:05:37,717 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 7 states. [2021-02-23 18:05:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:05:38,094 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2021-02-23 18:05:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 18:05:38,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-02-23 18:05:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:05:38,105 INFO L225 Difference]: With dead ends: 66 [2021-02-23 18:05:38,105 INFO L226 Difference]: Without dead ends: 30 [2021-02-23 18:05:38,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:05:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-02-23 18:05:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-02-23 18:05:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-02-23 18:05:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2021-02-23 18:05:38,174 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 21 [2021-02-23 18:05:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:05:38,175 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2021-02-23 18:05:38,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:05:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2021-02-23 18:05:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-23 18:05:38,177 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:05:38,177 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] [2021-02-23 18:05:38,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:05:38,178 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:05:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:05:38,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2091188958, now seen corresponding path program 1 times [2021-02-23 18:05:38,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:05:38,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059836816] [2021-02-23 18:05:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:05:38,182 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:05:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:38,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:38,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:38,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:38,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:38,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:05:38,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:05:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:38,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 18:05:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:38,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:38,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:38,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:05:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059836816] [2021-02-23 18:05:38,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:05:38,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 18:05:38,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334645460] [2021-02-23 18:05:38,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 18:05:38,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:05:38,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 18:05:38,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:05:38,408 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 10 states. [2021-02-23 18:05:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:05:38,750 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-02-23 18:05:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 18:05:38,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2021-02-23 18:05:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:05:38,761 INFO L225 Difference]: With dead ends: 30 [2021-02-23 18:05:38,761 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:05:38,763 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 [2021-02-23 18:05:38,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:05:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:05:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:05:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:05:38,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-02-23 18:05:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:05:38,766 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:05:38,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 18:05:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:05:38,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:05:38,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:05:38,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:05:39,362 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:05:39,363 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:05:39,363 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:05:39,363 INFO L185 CegarLoopUtils]: At program point L29(line 29) 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))) [2021-02-23 18:05:39,363 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) 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))) [2021-02-23 18:05:39,364 INFO L185 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-23 18:05:39,364 INFO L185 CegarLoopUtils]: At program point L29-3(line 29) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-23 18:05:39,364 INFO L192 CegarLoopUtils]: At program point L29-5(line 29) the Hoare annotation is: true [2021-02-23 18:05:39,364 INFO L192 CegarLoopUtils]: At program point L29-6(line 29) the Hoare annotation is: true [2021-02-23 18:05:39,364 INFO L185 CegarLoopUtils]: At program point mutex_unlockENTRY(lines 27 31) 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))) [2021-02-23 18:05:39,364 INFO L192 CegarLoopUtils]: At program point mutex_unlockEXIT(lines 27 31) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point mutex_unlockFINAL(lines 27 31) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,365 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,366 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|)) [2021-02-23 18:05:39,366 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,366 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:05:39,366 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L192 CegarLoopUtils]: At program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L192 CegarLoopUtils]: At program point errEXIT(lines 14 15) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L192 CegarLoopUtils]: At program point errENTRY(lines 14 15) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L192 CegarLoopUtils]: At program point errFINAL(lines 14 15) the Hoare annotation is: true [2021-02-23 18:05:39,367 INFO L185 CegarLoopUtils]: At program point mutex_lockENTRY(lines 21 25) 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)|)) [2021-02-23 18:05:39,368 INFO L185 CegarLoopUtils]: At program point L23(line 23) 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)|))) [2021-02-23 18:05:39,368 INFO L185 CegarLoopUtils]: At program point L23-1(line 23) 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)|))) [2021-02-23 18:05:39,368 INFO L185 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-23 18:05:39,368 INFO L185 CegarLoopUtils]: At program point mutex_lockEXIT(lines 21 25) 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))) [2021-02-23 18:05:39,368 INFO L185 CegarLoopUtils]: At program point L23-3(line 23) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-23 18:05:39,369 INFO L185 CegarLoopUtils]: At program point L23-5(line 23) 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)|))) [2021-02-23 18:05:39,369 INFO L185 CegarLoopUtils]: At program point L23-6(line 23) 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)|))) [2021-02-23 18:05:39,369 INFO L185 CegarLoopUtils]: At program point mutex_lockFINAL(lines 21 25) 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))) [2021-02-23 18:05:39,370 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,370 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,370 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,370 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:05:39,370 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 33 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-23 18:05:39,370 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 33 45) the Hoare annotation is: true [2021-02-23 18:05:39,371 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 33 45) the Hoare annotation is: true [2021-02-23 18:05:39,371 INFO L192 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: true [2021-02-23 18:05:39,371 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2021-02-23 18:05:39,372 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2021-02-23 18:05:39,372 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-23 18:05:39,372 INFO L192 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2021-02-23 18:05:39,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:05:39 BoogieIcfgContainer [2021-02-23 18:05:39,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:05:39,397 INFO L168 Benchmark]: Toolchain (without parser) took 3415.12 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 127.9 MB in the beginning and 86.4 MB in the end (delta: 41.5 MB). Peak memory consumption was 81.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:39,397 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:05:39,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.48 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:39,402 INFO L168 Benchmark]: Boogie Preprocessor took 39.64 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:39,403 INFO L168 Benchmark]: RCFGBuilder took 675.96 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 130.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:39,409 INFO L168 Benchmark]: TraceAbstraction took 2433.17 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 130.1 MB in the beginning and 86.4 MB in the end (delta: 43.8 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:39,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 250.48 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.64 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 675.96 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 130.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2433.17 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 130.1 MB in the beginning and 86.4 MB in the end (delta: 43.8 MB). Peak memory consumption was 83.7 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: 27]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for err Derived contract for procedure err: 1 - ProcedureContractResult [Line: 21]: 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: 33]: 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: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s 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...