/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:28:27,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:28:27,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:28:27,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:28:27,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:28:27,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:28:27,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:28:27,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:28:27,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:28:27,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:28:27,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:28:27,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:28:27,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:28:27,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:28:27,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:28:27,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:28:27,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:28:27,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:28:27,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:28:27,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:28:27,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:28:27,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:28:27,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:28:27,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:28:27,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:28:27,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:28:27,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:28:27,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:28:27,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:28:27,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:28:27,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:28:27,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:28:27,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:28:27,561 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:28:27,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:28:27,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:28:27,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:28:27,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:28:27,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:28:27,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:28:27,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:28:27,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:28:27,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:28:27,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:28:27,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:28:27,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:28:27,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:28:27,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:28:27,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:28:27,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:28:27,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:28:27,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:28:27,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:28:27,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:28:27,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:28:27,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:28:27,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:28:27,844 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:28:27,844 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:28:27,845 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-17 22:28:27,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca4975e4/69bcf406cfd44568a69addb94c0b8ad0/FLAGbf7f43046 [2020-07-17 22:28:28,336 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:28:28,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-17 22:28:28,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca4975e4/69bcf406cfd44568a69addb94c0b8ad0/FLAGbf7f43046 [2020-07-17 22:28:28,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca4975e4/69bcf406cfd44568a69addb94c0b8ad0 [2020-07-17 22:28:28,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:28:28,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:28:28,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:28,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:28:28,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:28:28,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:28" (1/1) ... [2020-07-17 22:28:28,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335427ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:28, skipping insertion in model container [2020-07-17 22:28:28,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:28" (1/1) ... [2020-07-17 22:28:28,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:28:28,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:28:28,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:28,980 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:28:28,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:29,013 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:28:29,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29 WrapperNode [2020-07-17 22:28:29,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:29,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:28:29,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:28:29,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:28:29,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (1/1) ... [2020-07-17 22:28:29,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:28:29,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:28:29,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:28:29,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:28:29,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (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 [2020-07-17 22:28:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:28:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:28:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-17 22:28:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-17 22:28:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-17 22:28:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:28:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:28:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-17 22:28:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-17 22:28:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:28:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:28:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:28:29,447 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:28:29,448 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:28:29,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:29 BoogieIcfgContainer [2020-07-17 22:28:29,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:28:29,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:28:29,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:28:29,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:28:29,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:28:28" (1/3) ... [2020-07-17 22:28:29,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a73b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:29, skipping insertion in model container [2020-07-17 22:28:29,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:29" (2/3) ... [2020-07-17 22:28:29,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a73b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:29, skipping insertion in model container [2020-07-17 22:28:29,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:29" (3/3) ... [2020-07-17 22:28:29,465 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-07-17 22:28:29,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:28:29,488 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:28:29,507 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:28:29,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:28:29,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:28:29,546 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:28:29,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:28:29,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:28:29,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:28:29,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:28:29,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:28:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-17 22:28:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:28:29,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:28:29,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:28:29,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:28:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:28:29,606 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-07-17 22:28:29,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:28:29,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108643600] [2020-07-17 22:28:29,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:28:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:29,909 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {32#true} is VALID [2020-07-17 22:28:29,909 INFO L280 TraceCheckUtils]: 1: Hoare triple {32#true} assume true; {32#true} is VALID [2020-07-17 22:28:29,910 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} #38#return; {32#true} is VALID [2020-07-17 22:28:29,914 INFO L263 TraceCheckUtils]: 0: Hoare triple {32#true} call ULTIMATE.init(); {40#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:28:29,914 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {32#true} is VALID [2020-07-17 22:28:29,914 INFO L280 TraceCheckUtils]: 2: Hoare triple {32#true} assume true; {32#true} is VALID [2020-07-17 22:28:29,915 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} #38#return; {32#true} is VALID [2020-07-17 22:28:29,915 INFO L263 TraceCheckUtils]: 4: Hoare triple {32#true} call #t~ret2 := main(); {32#true} is VALID [2020-07-17 22:28:29,917 INFO L280 TraceCheckUtils]: 5: Hoare triple {32#true} call ~#m~0.base, ~#m~0.offset := #Ultimate.allocOnStack(4);call write~int(0, ~#m~0.base, ~#m~0.offset, 4); {37#(= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|))} is VALID [2020-07-17 22:28:29,920 INFO L263 TraceCheckUtils]: 6: Hoare triple {37#(= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|))} call mutex_lock(~#m~0.base, ~#m~0.offset); {38#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)} is VALID [2020-07-17 22:28:29,921 INFO L280 TraceCheckUtils]: 7: Hoare triple {38#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)} ~a.base, ~a.offset := #in~a.base, #in~a.offset;call #t~mem0 := read~int(~a.base, ~a.offset, 4); {39#(= 0 |mutex_lock_#t~mem0|)} is VALID [2020-07-17 22:28:29,922 INFO L280 TraceCheckUtils]: 8: Hoare triple {39#(= 0 |mutex_lock_#t~mem0|)} assume 1 == #t~mem0;havoc #t~mem0; {33#false} is VALID [2020-07-17 22:28:29,922 INFO L263 TraceCheckUtils]: 9: Hoare triple {33#false} call err(); {33#false} is VALID [2020-07-17 22:28:29,923 INFO L280 TraceCheckUtils]: 10: Hoare triple {33#false} assume !false; {33#false} is VALID [2020-07-17 22:28:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:28:29,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108643600] [2020-07-17 22:28:29,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:28:29,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 22:28:29,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796088909] [2020-07-17 22:28:29,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-17 22:28:29,937 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:28:29,940 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-17 22:28:29,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:29,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 22:28:29,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:28:29,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 22:28:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:28:29,977 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-07-17 22:28:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:30,344 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-17 22:28:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 22:28:30,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-17 22:28:30,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:28:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:28:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2020-07-17 22:28:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:28:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2020-07-17 22:28:30,364 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 50 transitions. [2020-07-17 22:28:30,461 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:30,473 INFO L225 Difference]: With dead ends: 46 [2020-07-17 22:28:30,474 INFO L226 Difference]: Without dead ends: 18 [2020-07-17 22:28:30,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-17 22:28:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-17 22:28:30,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-17 22:28:30,535 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:28:30,536 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-17 22:28:30,536 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-17 22:28:30,537 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-17 22:28:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:30,540 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-17 22:28:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-17 22:28:30,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:30,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:30,541 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-17 22:28:30,542 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-17 22:28:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:30,545 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-17 22:28:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-17 22:28:30,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:30,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:30,546 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:28:30,546 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:28:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-17 22:28:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-07-17 22:28:30,551 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-07-17 22:28:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:28:30,551 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-07-17 22:28:30,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 22:28:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-17 22:28:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:28:30,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:28:30,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:28:30,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:28:30,553 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:28:30,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:28:30,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-07-17 22:28:30,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:28:30,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700444383] [2020-07-17 22:28:30,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:28:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:30,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {185#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {172#true} is VALID [2020-07-17 22:28:30,658 INFO L280 TraceCheckUtils]: 1: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-17 22:28:30,658 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {172#true} {172#true} #38#return; {172#true} is VALID [2020-07-17 22:28:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:30,721 INFO L280 TraceCheckUtils]: 0: Hoare triple {186#(= |#memory_int| |old(#memory_int)|)} ~a.base, ~a.offset := #in~a.base, #in~a.offset;call #t~mem0 := read~int(~a.base, ~a.offset, 4); {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} is VALID [2020-07-17 22:28:30,722 INFO L280 TraceCheckUtils]: 1: Hoare triple {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} assume !(1 == #t~mem0);havoc #t~mem0; {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} is VALID [2020-07-17 22:28:30,723 INFO L280 TraceCheckUtils]: 2: Hoare triple {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} call write~int(1, ~a.base, ~a.offset, 4); {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} is VALID [2020-07-17 22:28:30,724 INFO L280 TraceCheckUtils]: 3: Hoare triple {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} assume true; {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} is VALID [2020-07-17 22:28:30,726 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} {172#true} #42#return; {182#(= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|))} is VALID [2020-07-17 22:28:30,728 INFO L263 TraceCheckUtils]: 0: Hoare triple {172#true} call ULTIMATE.init(); {185#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:28:30,728 INFO L280 TraceCheckUtils]: 1: Hoare triple {185#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {172#true} is VALID [2020-07-17 22:28:30,729 INFO L280 TraceCheckUtils]: 2: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-17 22:28:30,729 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {172#true} {172#true} #38#return; {172#true} is VALID [2020-07-17 22:28:30,729 INFO L263 TraceCheckUtils]: 4: Hoare triple {172#true} call #t~ret2 := main(); {172#true} is VALID [2020-07-17 22:28:30,730 INFO L280 TraceCheckUtils]: 5: Hoare triple {172#true} call ~#m~0.base, ~#m~0.offset := #Ultimate.allocOnStack(4);call write~int(0, ~#m~0.base, ~#m~0.offset, 4); {172#true} is VALID [2020-07-17 22:28:30,732 INFO L263 TraceCheckUtils]: 6: Hoare triple {172#true} call mutex_lock(~#m~0.base, ~#m~0.offset); {186#(= |#memory_int| |old(#memory_int)|)} is VALID [2020-07-17 22:28:30,734 INFO L280 TraceCheckUtils]: 7: Hoare triple {186#(= |#memory_int| |old(#memory_int)|)} ~a.base, ~a.offset := #in~a.base, #in~a.offset;call #t~mem0 := read~int(~a.base, ~a.offset, 4); {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} is VALID [2020-07-17 22:28:30,736 INFO L280 TraceCheckUtils]: 8: Hoare triple {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} assume !(1 == #t~mem0);havoc #t~mem0; {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} is VALID [2020-07-17 22:28:30,737 INFO L280 TraceCheckUtils]: 9: Hoare triple {187#(and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset))} call write~int(1, ~a.base, ~a.offset, 4); {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} is VALID [2020-07-17 22:28:30,738 INFO L280 TraceCheckUtils]: 10: Hoare triple {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} assume true; {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} is VALID [2020-07-17 22:28:30,739 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {188#(= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1)} {172#true} #42#return; {182#(= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|))} is VALID [2020-07-17 22:28:30,741 INFO L263 TraceCheckUtils]: 12: Hoare triple {182#(= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|))} call mutex_unlock(~#m~0.base, ~#m~0.offset); {183#(= (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)} is VALID [2020-07-17 22:28:30,742 INFO L280 TraceCheckUtils]: 13: Hoare triple {183#(= (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)} ~b.base, ~b.offset := #in~b.base, #in~b.offset;call #t~mem1 := read~int(~b.base, ~b.offset, 4); {184#(= 1 |mutex_unlock_#t~mem1|)} is VALID [2020-07-17 22:28:30,743 INFO L280 TraceCheckUtils]: 14: Hoare triple {184#(= 1 |mutex_unlock_#t~mem1|)} assume 1 != #t~mem1;havoc #t~mem1; {173#false} is VALID [2020-07-17 22:28:30,743 INFO L263 TraceCheckUtils]: 15: Hoare triple {173#false} call err(); {173#false} is VALID [2020-07-17 22:28:30,743 INFO L280 TraceCheckUtils]: 16: Hoare triple {173#false} assume !false; {173#false} is VALID [2020-07-17 22:28:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:28:30,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700444383] [2020-07-17 22:28:30,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:28:30,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 22:28:30,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050496516] [2020-07-17 22:28:30,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-07-17 22:28:30,748 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:28:30,749 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-17 22:28:30,771 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:30,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 22:28:30,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:28:30,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 22:28:30,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-17 22:28:30,773 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2020-07-17 22:28:31,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:31,156 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-17 22:28:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 22:28:31,157 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-07-17 22:28:31,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:28:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:28:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. [2020-07-17 22:28:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:28:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. [2020-07-17 22:28:31,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 17 transitions. [2020-07-17 22:28:31,193 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:31,194 INFO L225 Difference]: With dead ends: 18 [2020-07-17 22:28:31,194 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:28:31,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-17 22:28:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:28:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:28:31,197 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:28:31,197 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:31,197 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:31,198 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:31,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:31,198 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:28:31,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:31,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:31,199 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:31,199 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:31,200 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:31,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:31,201 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:28:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:31,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:31,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:31,202 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:28:31,202 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:28:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:28:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:28:31,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-17 22:28:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:28:31,203 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:28:31,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 22:28:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:31,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:31,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:28:31,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:28:31,362 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) (= |#memory_int| |old(#memory_int)|)) [2020-07-17 22:28:31,362 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-07-17 22:28:31,362 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2020-07-17 22:28:31,362 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-17 22:28:31,362 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-07-17 22:28:31,362 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2020-07-17 22:28:31,363 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:28:31,363 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 22:28:31,363 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:28:31,363 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-07-17 22:28:31,363 INFO L268 CegarLoopResult]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2020-07-17 22:28:31,363 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-07-17 22:28:31,363 INFO L268 CegarLoopResult]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 22:28:31,364 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-17 22:28:31,364 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:28:31,364 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:28:31,365 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:28:31,365 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:28:31,365 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|)) [2020-07-17 22:28:31,365 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2020-07-17 22:28:31,365 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2020-07-17 22:28:31,365 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-07-17 22:28:31,366 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-17 22:28:31,366 INFO L264 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-17 22:28:31,371 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:28:31,371 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:28:31,372 WARN L170 areAnnotationChecker]: errErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-17 22:28:31,372 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-17 22:28:31,373 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-17 22:28:31,375 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-17 22:28:31,376 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:28:31,381 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-17 22:28:31,382 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-17 22:28:31,383 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:28:31,383 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:28:31,388 WARN L170 areAnnotationChecker]: mutex_unlockFINAL has no Hoare annotation [2020-07-17 22:28:31,388 WARN L170 areAnnotationChecker]: mutex_lockFINAL has no Hoare annotation [2020-07-17 22:28:31,388 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:28:31,388 WARN L170 areAnnotationChecker]: mutex_unlockEXIT has no Hoare annotation [2020-07-17 22:28:31,389 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-17 22:28:31,389 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:28:31,389 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:28:31,389 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:28:31,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:28:31 BoogieIcfgContainer [2020-07-17 22:28:31,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:28:31,402 INFO L168 Benchmark]: Toolchain (without parser) took 2720.07 ms. Allocated memory was 139.5 MB in the beginning and 244.3 MB in the end (delta: 104.9 MB). Free memory was 103.0 MB in the beginning and 207.6 MB in the end (delta: -104.6 MB). Peak memory consumption was 244.9 kB. Max. memory is 7.1 GB. [2020-07-17 22:28:31,403 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:28:31,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.54 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 92.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:31,406 INFO L168 Benchmark]: Boogie Preprocessor took 116.27 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.5 MB in the beginning and 182.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:31,407 INFO L168 Benchmark]: RCFGBuilder took 321.77 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 164.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:31,410 INFO L168 Benchmark]: TraceAbstraction took 1943.27 ms. Allocated memory was 203.9 MB in the beginning and 244.3 MB in the end (delta: 40.4 MB). Free memory was 163.8 MB in the beginning and 207.6 MB in the end (delta: -43.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:28:31,418 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.54 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 92.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.27 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.5 MB in the beginning and 182.6 MB in the end (delta: -90.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 321.77 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 164.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1943.27 ms. Allocated memory was 203.9 MB in the beginning and 244.3 MB in the end (delta: 40.4 MB). Free memory was 163.8 MB in the beginning and 207.6 MB in the end (delta: -43.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 57 SDs, 0 SdLazy, 104 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 74 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...