/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_14-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:11:23,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:11:23,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:11:23,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:11:23,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:11:23,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:11:23,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:11:23,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:11:23,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:11:23,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:11:23,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:11:23,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:11:23,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:11:23,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:11:23,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:11:23,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:11:23,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:11:23,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:11:23,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:11:23,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:11:23,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:11:23,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:11:23,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:11:23,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:11:23,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:11:23,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:11:23,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:11:23,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:11:23,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:11:23,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:11:23,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:11:23,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:11:23,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:11:23,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:11:23,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:11:23,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:11:23,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:11:23,343 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:11:23,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:11:23,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:11:23,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:11:23,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:11:23,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:11:23,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:11:23,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:11:23,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:11:23,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:11:23,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:11:23,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:11:23,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:11:23,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:11:23,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:11:23,351 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:11:23,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:11:23,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:11:23,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:11:23,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:11:23,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:11:23,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:11:23,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:11:23,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:11:23,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:11:23,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:11:23,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:11:23,792 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:11:23,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_14-2.c [2020-11-07 05:11:23,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e765e32/4526cfdf5bb3410ba0c07cde73e22858/FLAG69e51772c [2020-11-07 05:11:24,683 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:11:24,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c [2020-11-07 05:11:24,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e765e32/4526cfdf5bb3410ba0c07cde73e22858/FLAG69e51772c [2020-11-07 05:11:24,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e765e32/4526cfdf5bb3410ba0c07cde73e22858 [2020-11-07 05:11:24,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:11:24,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:11:24,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:11:24,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:11:25,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:11:25,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:24" (1/1) ... [2020-11-07 05:11:25,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe6ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25, skipping insertion in model container [2020-11-07 05:11:25,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:24" (1/1) ... [2020-11-07 05:11:25,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:11:25,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:11:25,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:11:25,237 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:11:25,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:11:25,295 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:11:25,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25 WrapperNode [2020-11-07 05:11:25,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:11:25,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:11:25,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:11:25,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:11:25,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (1/1) ... [2020-11-07 05:11:25,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:11:25,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:11:25,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:11:25,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:11:25,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (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 [2020-11-07 05:11:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:11:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:11:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:11:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:11:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:11:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:11:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:11:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:11:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:11:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:11:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:11:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:11:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:11:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:11:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:11:26,431 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:11:26,432 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:11:26,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:11:26 BoogieIcfgContainer [2020-11-07 05:11:26,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:11:26,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:11:26,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:11:26,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:11:26,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:11:24" (1/3) ... [2020-11-07 05:11:26,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576718aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:11:26, skipping insertion in model container [2020-11-07 05:11:26,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:25" (2/3) ... [2020-11-07 05:11:26,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576718aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:11:26, skipping insertion in model container [2020-11-07 05:11:26,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:11:26" (3/3) ... [2020-11-07 05:11:26,447 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-11-07 05:11:26,464 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:11:26,468 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:11:26,481 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:11:26,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:11:26,508 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:11:26,508 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:11:26,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:11:26,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:11:26,509 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:11:26,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:11:26,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:11:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-11-07 05:11:26,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-07 05:11:26,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:11:26,546 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:11:26,547 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:11:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:11:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1387894238, now seen corresponding path program 1 times [2020-11-07 05:11:26,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:11:26,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363685930] [2020-11-07 05:11:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:11:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:11:26,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:11:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:11:26,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:11:26,901 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 05:11:26,903 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 05:11:26,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:11:27,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:11:27 BoogieIcfgContainer [2020-11-07 05:11:27,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:11:27,032 INFO L168 Benchmark]: Toolchain (without parser) took 2040.30 ms. Allocated memory is still 154.1 MB. Free memory was 131.0 MB in the beginning and 127.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:11:27,033 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:11:27,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.47 ms. Allocated memory is still 154.1 MB. Free memory was 130.3 MB in the beginning and 119.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 05:11:27,035 INFO L168 Benchmark]: Boogie Preprocessor took 51.37 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 117.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:11:27,036 INFO L168 Benchmark]: RCFGBuilder took 1084.54 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 112.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:11:27,037 INFO L168 Benchmark]: TraceAbstraction took 592.56 ms. Allocated memory is still 154.1 MB. Free memory was 111.8 MB in the beginning and 127.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-11-07 05:11:27,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 298.47 ms. Allocated memory is still 154.1 MB. Free memory was 130.3 MB in the beginning and 119.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.37 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 117.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1084.54 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 112.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 592.56 ms. Allocated memory is still 154.1 MB. Free memory was 111.8 MB in the beginning and 127.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0] [L9] int lk1; VAL [p1=0] [L11] int p2 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0] [L12] int lk2; VAL [p1=0, p2=0] [L14] int p3 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0] [L15] int lk3; VAL [p1=0, p2=0, p3=0] [L17] int p4 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0] [L18] int lk4; VAL [p1=0, p2=0, p3=0, p4=0] [L20] int p5 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0, p5=0] [L21] int lk5; VAL [p1=0, p2=0, p3=0, p4=0, p5=0] [L23] int p6 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0, p5=0, p6=0] [L24] int lk6; VAL [p1=0, p2=0, p3=0, p4=0, p5=0, p6=0] [L26] int p7 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0] [L27] int lk7; VAL [p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0] [L29] int p8 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0] [L30] int lk8; VAL [p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0] [L32] int p9 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L33] int lk9; VAL [p1=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L35] int p10 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p10=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L36] int lk10; VAL [p1=0, p10=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L38] int p11 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p10=0, p11=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L39] int lk11; VAL [p1=0, p10=0, p11=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L41] int p12 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p10=0, p11=0, p12=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L42] int lk12; VAL [p1=0, p10=0, p11=0, p12=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L44] int p13 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p10=0, p11=0, p12=0, p13=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L45] int lk13; VAL [p1=0, p10=0, p11=0, p12=0, p13=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L47] int p14 = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L48] int lk14; VAL [p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L51] int cond; VAL [p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L53] COND TRUE 1 VAL [p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L54] cond = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, cond=1, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L55] COND FALSE !(cond == 0) VAL [cond=1, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L58] lk1 = 0 VAL [cond=1, lk1=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L60] lk2 = 0 VAL [cond=1, lk1=0, lk2=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L62] lk3 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L64] lk4 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L66] lk5 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L68] lk6 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L70] lk7 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L72] lk8 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L74] lk9 = 0 VAL [cond=1, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L76] lk10 = 0 VAL [cond=1, lk1=0, lk10=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L78] lk11 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L80] lk12 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L82] lk13 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L96] COND FALSE !(p3 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L100] COND FALSE !(p4 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L104] COND FALSE !(p5 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L108] COND FALSE !(p6 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L112] COND FALSE !(p7 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L116] COND FALSE !(p8 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L120] COND FALSE !(p9 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L124] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L128] COND FALSE !(p11 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L132] COND FALSE !(p12 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L136] COND FALSE !(p13 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L140] COND FALSE !(p14 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=0, p12=0, p13=0, p14=0, p2=0, p3=0, p4=0, p5=0, p6=0, p7=0, p8=0, p9=0] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 170 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 incorrect! Received shutdown request...