/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_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:05:33,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:05:33,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:05:33,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:05:33,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:05:33,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:05:33,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:05:33,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:05:33,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:05:33,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:05:33,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:05:33,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:05:33,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:05:33,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:05:33,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:05:33,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:05:33,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:05:33,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:05:33,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:05:33,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:05:33,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:05:33,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:05:33,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:05:33,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:05:33,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:05:33,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:05:33,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:05:33,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:05:33,448 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 [2020-07-10 15:05:33,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:05:33,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:05:33,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:05:33,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:05:33,474 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:05:33,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:05:33,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:05:33,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:05:33,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:05:33,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:05:33,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:05:33,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:05:33,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:05:33,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:05:33,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:05:33,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:05:33,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:05:33,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:05:33,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:05:33,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:05:33,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:05:33,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:05:33,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:05:33,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:05:33,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:05:33,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:05:33,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:05:33,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:05:33,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:05:33,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:05:33,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:05:33,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:05:33,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:05:33,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:05:33,770 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:05:33,771 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-10 15:05:33,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8ae38eb/cd4fb900f8224ce8b319e39a28e7a02a/FLAGc54a3fe9a [2020-07-10 15:05:34,291 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:05:34,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-10 15:05:34,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8ae38eb/cd4fb900f8224ce8b319e39a28e7a02a/FLAGc54a3fe9a [2020-07-10 15:05:34,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8ae38eb/cd4fb900f8224ce8b319e39a28e7a02a [2020-07-10 15:05:34,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:05:34,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:05:34,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:34,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:05:34,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:05:34,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:34,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502163c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34, skipping insertion in model container [2020-07-10 15:05:34,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:34,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:05:34,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:05:34,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:34,961 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:05:34,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:34,995 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:05:34,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34 WrapperNode [2020-07-10 15:05:34,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:34,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:05:34,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:05:34,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:05:35,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (1/1) ... [2020-07-10 15:05:35,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:05:35,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:05:35,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:05:35,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:05:35,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (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 [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-10 15:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-10 15:05:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:05:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:05:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:05:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:05:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:05:35,414 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:05:35,414 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:05:35,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:35 BoogieIcfgContainer [2020-07-10 15:05:35,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:05:35,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:05:35,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:05:35,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:05:35,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:05:34" (1/3) ... [2020-07-10 15:05:35,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa8507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:35, skipping insertion in model container [2020-07-10 15:05:35,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:34" (2/3) ... [2020-07-10 15:05:35,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa8507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:35, skipping insertion in model container [2020-07-10 15:05:35,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:35" (3/3) ... [2020-07-10 15:05:35,430 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2020-07-10 15:05:35,442 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:05:35,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:05:35,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:05:35,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:05:35,492 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:05:35,492 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:05:35,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:05:35,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:05:35,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:05:35,493 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:05:35,493 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:05:35,512 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-10 15:05:35,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:05:35,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:05:35,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:05:35,520 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:05:35,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:05:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-07-10 15:05:35,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:05:35,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190000002] [2020-07-10 15:05:35,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:05:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:35,832 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 [2020-07-10 15:05:35,832 INFO L280 TraceCheckUtils]: 1: Hoare triple {32#true} assume true; {32#true} is VALID [2020-07-10 15:05:35,834 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} #38#return; {32#true} is VALID [2020-07-10 15:05:35,845 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 [2020-07-10 15:05:35,847 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 [2020-07-10 15:05:35,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {32#true} assume true; {32#true} is VALID [2020-07-10 15:05:35,848 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} #38#return; {32#true} is VALID [2020-07-10 15:05:35,848 INFO L263 TraceCheckUtils]: 4: Hoare triple {32#true} call #t~ret2 := main(); {32#true} is VALID [2020-07-10 15:05:35,853 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 [2020-07-10 15:05:35,857 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 [2020-07-10 15:05:35,860 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 [2020-07-10 15:05:35,862 INFO L280 TraceCheckUtils]: 8: Hoare triple {39#(= 0 |mutex_lock_#t~mem0|)} assume 1 == #t~mem0;havoc #t~mem0; {33#false} is VALID [2020-07-10 15:05:35,863 INFO L263 TraceCheckUtils]: 9: Hoare triple {33#false} call err(); {33#false} is VALID [2020-07-10 15:05:35,863 INFO L280 TraceCheckUtils]: 10: Hoare triple {33#false} assume !false; {33#false} is VALID [2020-07-10 15:05:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:05:35,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190000002] [2020-07-10 15:05:35,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:05:35,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 15:05:35,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797181412] [2020-07-10 15:05:35,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-10 15:05:35,884 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:05:35,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 15:05:35,925 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:05:35,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 15:05:35,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:05:35,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 15:05:35,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 15:05:35,937 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-07-10 15:05:36,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:36,307 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-10 15:05:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:05:36,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-10 15:05:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:05:36,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 15:05:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2020-07-10 15:05:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 15:05:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2020-07-10 15:05:36,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 50 transitions. [2020-07-10 15:05:36,414 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:05:36,426 INFO L225 Difference]: With dead ends: 46 [2020-07-10 15:05:36,426 INFO L226 Difference]: Without dead ends: 18 [2020-07-10 15:05:36,431 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 [2020-07-10 15:05:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-10 15:05:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-10 15:05:36,485 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:05:36,486 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-10 15:05:36,486 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-10 15:05:36,487 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-10 15:05:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:36,490 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-10 15:05:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-10 15:05:36,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:36,491 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:36,491 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-10 15:05:36,492 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-10 15:05:36,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:36,495 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-10 15:05:36,495 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-10 15:05:36,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:36,496 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:36,496 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:05:36,496 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:05:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-10 15:05:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-07-10 15:05:36,501 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-07-10 15:05:36,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:05:36,501 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-07-10 15:05:36,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 15:05:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-10 15:05:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-10 15:05:36,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:05:36,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:05:36,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:05:36,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:05:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:05:36,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-07-10 15:05:36,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:05:36,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697378723] [2020-07-10 15:05:36,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:05:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:36,599 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 [2020-07-10 15:05:36,600 INFO L280 TraceCheckUtils]: 1: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-10 15:05:36,600 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {172#true} {172#true} #38#return; {172#true} is VALID [2020-07-10 15:05:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:05:36,681 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 [2020-07-10 15:05:36,684 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 [2020-07-10 15:05:36,685 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 [2020-07-10 15:05:36,686 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 [2020-07-10 15:05:36,688 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 [2020-07-10 15:05:36,689 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 [2020-07-10 15:05:36,690 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 [2020-07-10 15:05:36,690 INFO L280 TraceCheckUtils]: 2: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-10 15:05:36,691 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {172#true} {172#true} #38#return; {172#true} is VALID [2020-07-10 15:05:36,691 INFO L263 TraceCheckUtils]: 4: Hoare triple {172#true} call #t~ret2 := main(); {172#true} is VALID [2020-07-10 15:05:36,691 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 [2020-07-10 15:05:36,693 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 [2020-07-10 15:05:36,693 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 [2020-07-10 15:05:36,694 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 [2020-07-10 15:05:36,695 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 [2020-07-10 15:05:36,696 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 [2020-07-10 15:05:36,698 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 [2020-07-10 15:05:36,699 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 [2020-07-10 15:05:36,700 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 [2020-07-10 15:05:36,701 INFO L280 TraceCheckUtils]: 14: Hoare triple {184#(= 1 |mutex_unlock_#t~mem1|)} assume 1 != #t~mem1;havoc #t~mem1; {173#false} is VALID [2020-07-10 15:05:36,701 INFO L263 TraceCheckUtils]: 15: Hoare triple {173#false} call err(); {173#false} is VALID [2020-07-10 15:05:36,701 INFO L280 TraceCheckUtils]: 16: Hoare triple {173#false} assume !false; {173#false} is VALID [2020-07-10 15:05:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:05:36,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697378723] [2020-07-10 15:05:36,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:05:36,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 15:05:36,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947968383] [2020-07-10 15:05:36,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-07-10 15:05:36,706 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:05:36,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 15:05:36,727 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:05:36,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 15:05:36,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:05:36,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 15:05:36,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-10 15:05:36,729 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2020-07-10 15:05:37,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:37,101 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-10 15:05:37,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 15:05:37,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-07-10 15:05:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:05:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 15:05:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. [2020-07-10 15:05:37,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 15:05:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. [2020-07-10 15:05:37,106 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 17 transitions. [2020-07-10 15:05:37,136 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:05:37,136 INFO L225 Difference]: With dead ends: 18 [2020-07-10 15:05:37,136 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:05:37,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-10 15:05:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:05:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:05:37,139 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:05:37,139 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:37,139 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:37,140 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:37,140 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:05:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:37,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:37,141 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:37,141 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:37,141 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:05:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:05:37,142 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:05:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:37,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:37,142 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:05:37,143 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:05:37,143 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:05:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:05:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:05:37,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-10 15:05:37,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:05:37,144 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:05:37,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 15:05:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:05:37,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:05:37,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:05:37,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:05:37,292 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 22 26) 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)|)) [2020-07-10 15:05:37,292 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 22 26) no Hoare annotation was computed. [2020-07-10 15:05:37,292 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-07-10 15:05:37,292 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-10 15:05:37,292 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 22 26) no Hoare annotation was computed. [2020-07-10 15:05:37,293 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-07-10 15:05:37,293 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:05:37,293 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)|)) [2020-07-10 15:05:37,293 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:05:37,293 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-07-10 15:05:37,294 INFO L268 CegarLoopResult]: For program point errEXIT(lines 13 14) no Hoare annotation was computed. [2020-07-10 15:05:37,294 INFO L271 CegarLoopResult]: At program point errENTRY(lines 13 14) the Hoare annotation is: true [2020-07-10 15:05:37,294 INFO L268 CegarLoopResult]: For program point errFINAL(lines 13 14) no Hoare annotation was computed. [2020-07-10 15:05:37,294 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 16 20) 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|)))) [2020-07-10 15:05:37,294 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-10 15:05:37,294 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-07-10 15:05:37,295 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 16 20) no Hoare annotation was computed. [2020-07-10 15:05:37,295 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 16 20) no Hoare annotation was computed. [2020-07-10 15:05:37,295 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-10 15:05:37,295 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:05:37,295 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:05:37,295 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:05:37,295 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:05:37,296 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-10 15:05:37,296 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-10 15:05:37,296 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 28 40) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|)) [2020-07-10 15:05:37,296 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 28 40) no Hoare annotation was computed. [2020-07-10 15:05:37,296 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 28 40) no Hoare annotation was computed. [2020-07-10 15:05:37,297 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-07-10 15:05:37,301 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 15:05:37,302 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:05:37,302 WARN L170 areAnnotationChecker]: errErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-10 15:05:37,302 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-10 15:05:37,302 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:05:37,305 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 15:05:37,305 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 15:05:37,305 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:05:37,305 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-10 15:05:37,305 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:05:37,306 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:05:37,306 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:05:37,308 WARN L170 areAnnotationChecker]: L24-3 has no Hoare annotation [2020-07-10 15:05:37,308 WARN L170 areAnnotationChecker]: L24-3 has no Hoare annotation [2020-07-10 15:05:37,308 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:05:37,308 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-10 15:05:37,309 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-10 15:05:37,309 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2020-07-10 15:05:37,309 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2020-07-10 15:05:37,309 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:05:37,309 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 15:05:37,311 WARN L170 areAnnotationChecker]: mutex_unlockFINAL has no Hoare annotation [2020-07-10 15:05:37,311 WARN L170 areAnnotationChecker]: mutex_lockFINAL has no Hoare annotation [2020-07-10 15:05:37,311 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 15:05:37,311 WARN L170 areAnnotationChecker]: mutex_unlockEXIT has no Hoare annotation [2020-07-10 15:05:37,311 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-10 15:05:37,312 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:05:37,312 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:05:37,312 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. [2020-07-10 15:05:37,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:05:37 BoogieIcfgContainer [2020-07-10 15:05:37,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:05:37,319 INFO L168 Benchmark]: Toolchain (without parser) took 2585.80 ms. Allocated memory was 146.8 MB in the beginning and 243.8 MB in the end (delta: 97.0 MB). Free memory was 103.0 MB in the beginning and 205.6 MB in the end (delta: -102.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:05:37,320 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:05:37,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.56 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:37,322 INFO L168 Benchmark]: Boogie Preprocessor took 121.50 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.8 MB in the beginning and 182.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:37,323 INFO L168 Benchmark]: RCFGBuilder took 300.42 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 165.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:37,324 INFO L168 Benchmark]: TraceAbstraction took 1894.35 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 165.2 MB in the beginning and 205.6 MB in the end (delta: -40.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:05:37,327 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 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.56 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.50 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.8 MB in the beginning and 182.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 300.42 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 165.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1894.35 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 165.2 MB in the beginning and 205.6 MB in the end (delta: -40.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: 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, 0.1s 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...