/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-36cd7be [2021-02-23 18:05:31,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:05:31,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:05:31,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:05:31,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:05:31,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:05:31,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:05:31,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:05:31,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:05:31,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:05:31,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:05:31,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:05:31,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:05:31,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:05:31,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:05:31,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:05:31,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:05:31,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:05:31,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:05:31,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:05:31,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:05:31,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:05:31,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:05:31,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:05:31,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 18:05:31,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 18:05:31,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 18:05:31,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 18:05:31,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 18:05:31,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 18:05:31,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 18:05:31,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 18:05:31,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 18:05:31,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 18:05:31,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 18:05:31,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 18:05:31,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 18:05:31,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 18:05:31,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:05:31,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:05:31,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:05:31,610 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 18:05:31,622 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:05:31,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:05:31,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:05:31,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:05:31,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:05:31,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:05:31,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:05:31,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:05:31,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:05:31,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:05:31,626 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:05:31,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:05:31,626 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:05:31,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:05:31,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:05:31,627 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:05:31,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:05:31,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:05:31,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:05:31,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:05:31,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:05:31,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:05:31,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:05:31,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:05:32,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:05:32,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:05:32,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:05:32,018 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:05:32,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-23 18:05:32,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9f8b562/6074b7f071824c97b0695e566ea5172b/FLAG5b0a2a648 [2021-02-23 18:05:32,638 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:05:32,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-23 18:05:32,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9f8b562/6074b7f071824c97b0695e566ea5172b/FLAG5b0a2a648 [2021-02-23 18:05:33,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9f8b562/6074b7f071824c97b0695e566ea5172b [2021-02-23 18:05:33,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:05:33,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:05:33,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:33,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:05:33,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:05:33,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60110c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:05:33,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:05:33,280 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] [2021-02-23 18:05:33,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:33,331 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:05:33,344 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] [2021-02-23 18:05:33,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:33,363 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:05:33,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33 WrapperNode [2021-02-23 18:05:33,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:33,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:05:33,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:05:33,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:05:33,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:05:33,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:05:33,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:05:33,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:05:33,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (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 18:05:33,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:05:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:05:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:05:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-02-23 18:05:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-23 18:05:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-23 18:05:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:05:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:05:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:05:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:05:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:05:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-02-23 18:05:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-23 18:05:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:05:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:05:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-23 18:05:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:05:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:05:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:05:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:05:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:05:33,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:05:33,861 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 18:05:33,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:33 BoogieIcfgContainer [2021-02-23 18:05:33,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:05:33,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:05:33,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:05:33,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:05:33,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:05:33" (1/3) ... [2021-02-23 18:05:33,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22337695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (2/3) ... [2021-02-23 18:05:33,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22337695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:33" (3/3) ... [2021-02-23 18:05:33,904 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2021-02-23 18:05:33,935 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:05:33,946 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:05:33,974 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:05:34,000 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:05:34,000 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:05:34,000 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:05:34,000 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:05:34,000 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:05:34,001 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:05:34,001 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:05:34,001 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:05:34,017 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-23 18:05:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-23 18:05:34,028 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:05:34,029 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 18:05:34,029 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:05:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:05:34,037 INFO L82 PathProgramCache]: Analyzing trace with hash -859708392, now seen corresponding path program 1 times [2021-02-23 18:05:34,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:05:34,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458658086] [2021-02-23 18:05:34,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:05:34,125 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:05:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:05:34,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:05:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:05:34,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458658086] [2021-02-23 18:05:34,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:05:34,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:05:34,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146806252] [2021-02-23 18:05:34,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:05:34,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:05:34,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:05:34,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:05:34,464 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 7 states. [2021-02-23 18:05:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:05:34,711 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2021-02-23 18:05:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 18:05:34,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-02-23 18:05:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:05:34,721 INFO L225 Difference]: With dead ends: 66 [2021-02-23 18:05:34,722 INFO L226 Difference]: Without dead ends: 30 [2021-02-23 18:05:34,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:05:34,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-02-23 18:05:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-02-23 18:05:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-02-23 18:05:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2021-02-23 18:05:34,774 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 21 [2021-02-23 18:05:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:05:34,774 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2021-02-23 18:05:34,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:05:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2021-02-23 18:05:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-23 18:05:34,776 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:05:34,776 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 18:05:34,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:05:34,777 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:05:34,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:05:34,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2091188958, now seen corresponding path program 1 times [2021-02-23 18:05:34,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:05:34,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433928249] [2021-02-23 18:05:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:05:34,782 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:05:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:05:34,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:05:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 18:05:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:05:34,968 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 18:05:34,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433928249] [2021-02-23 18:05:34,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:05:34,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 18:05:34,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258709674] [2021-02-23 18:05:34,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 18:05:34,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:05:34,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 18:05:34,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:05:34,972 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 10 states. [2021-02-23 18:05:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:05:35,320 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-02-23 18:05:35,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 18:05:35,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2021-02-23 18:05:35,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:05:35,321 INFO L225 Difference]: With dead ends: 30 [2021-02-23 18:05:35,322 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:05:35,324 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 18:05:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:05:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:05:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:05:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:05:35,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-02-23 18:05:35,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:05:35,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:05:35,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 18:05:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:05:35,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:05:35,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:05:35,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:05:35,915 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,916 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,916 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,917 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))) [2021-02-23 18:05:35,917 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))) [2021-02-23 18:05:35,917 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)) [2021-02-23 18:05:35,918 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)) [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point L26-5(line 26) the Hoare annotation is: true [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point L26-6(line 26) the Hoare annotation is: true [2021-02-23 18:05:35,919 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))) [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point mutex_unlockEXIT(lines 24 28) the Hoare annotation is: true [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point mutex_unlockFINAL(lines 24 28) the Hoare annotation is: true [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,919 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,920 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,920 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,920 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,920 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,920 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 18:05:35,920 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,921 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,921 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,921 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-23 18:05:35,923 INFO L192 CegarLoopUtils]: At program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: true [2021-02-23 18:05:35,923 INFO L192 CegarLoopUtils]: At program point errEXIT(lines 15 16) the Hoare annotation is: true [2021-02-23 18:05:35,923 INFO L192 CegarLoopUtils]: At program point errENTRY(lines 15 16) the Hoare annotation is: true [2021-02-23 18:05:35,923 INFO L192 CegarLoopUtils]: At program point errFINAL(lines 15 16) the Hoare annotation is: true [2021-02-23 18:05:35,924 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)|)) [2021-02-23 18:05:35,924 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))) [2021-02-23 18:05:35,924 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)|))) [2021-02-23 18:05:35,924 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)|))) [2021-02-23 18:05:35,924 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)) [2021-02-23 18:05:35,925 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)) [2021-02-23 18:05:35,925 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)|))) [2021-02-23 18:05:35,925 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)|))) [2021-02-23 18:05:35,925 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))) [2021-02-23 18:05:35,925 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,925 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,926 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,926 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,926 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) [2021-02-23 18:05:35,926 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-23 18:05:35,926 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-23 18:05:35,927 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|)) [2021-02-23 18:05:35,927 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 30 42) the Hoare annotation is: true [2021-02-23 18:05:35,927 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 30 42) the Hoare annotation is: true [2021-02-23 18:05:35,927 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-23 18:05:35,928 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) [2021-02-23 18:05:35,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:05:35 BoogieIcfgContainer [2021-02-23 18:05:35,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:05:35,948 INFO L168 Benchmark]: Toolchain (without parser) took 2913.76 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 149.1 MB in the beginning and 175.8 MB in the end (delta: -26.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,949 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 173.0 MB. Free memory was 146.1 MB in the beginning and 146.0 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:05:35,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.22 ms. Allocated memory is still 173.0 MB. Free memory was 148.1 MB in the beginning and 138.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,951 INFO L168 Benchmark]: Boogie Preprocessor took 33.34 ms. Allocated memory is still 173.0 MB. Free memory was 138.8 MB in the beginning and 137.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,951 INFO L168 Benchmark]: RCFGBuilder took 464.71 ms. Allocated memory is still 173.0 MB. Free memory was 137.4 MB in the beginning and 122.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,952 INFO L168 Benchmark]: TraceAbstraction took 2058.43 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 155.7 MB in the beginning and 175.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 119.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 173.0 MB. Free memory was 146.1 MB in the beginning and 146.0 MB in the end (delta: 101.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 307.22 ms. Allocated memory is still 173.0 MB. Free memory was 148.1 MB in the beginning and 138.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.34 ms. Allocated memory is still 173.0 MB. Free memory was 138.8 MB in the beginning and 137.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 464.71 ms. Allocated memory is still 173.0 MB. Free memory was 137.4 MB in the beginning and 122.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2058.43 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 155.7 MB in the beginning and 175.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 119.4 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: 1.3s, 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, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...