/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 12:06:14,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 12:06:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 12:06:14,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 12:06:14,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 12:06:14,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 12:06:14,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 12:06:14,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 12:06:15,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 12:06:15,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 12:06:15,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 12:06:15,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 12:06:15,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 12:06:15,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 12:06:15,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 12:06:15,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 12:06:15,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 12:06:15,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 12:06:15,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 12:06:15,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 12:06:15,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 12:06:15,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 12:06:15,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 12:06:15,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 12:06:15,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-10 12:06:15,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-10 12:06:15,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-10 12:06:15,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-10 12:06:15,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-10 12:06:15,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-10 12:06:15,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 12:06:15,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 12:06:15,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 12:06:15,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 12:06:15,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 12:06:15,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 12:06:15,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 12:06:15,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 12:06:15,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 12:06:15,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 12:06:15,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 12:06:15,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-10 12:06:15,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 12:06:15,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 12:06:15,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 12:06:15,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 12:06:15,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 12:06:15,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 12:06:15,098 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 12:06:15,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 12:06:15,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 12:06:15,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 12:06:15,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 12:06:15,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 12:06:15,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:06:15,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 12:06:15,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 12:06:15,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 12:06:15,103 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 12:06:15,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 12:06:15,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 12:06:15,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 12:06:15,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 12:06:15,450 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 12:06:15,451 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 12:06:15,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl [2021-07-10 12:06:15,452 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl' [2021-07-10 12:06:15,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 12:06:15,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 12:06:15,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 12:06:15,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 12:06:15,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 12:06:15,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 12:06:15,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 12:06:15,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 12:06:15,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 12:06:15,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... [2021-07-10 12:06:15,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 12:06:15,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 12:06:15,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 12:06:15,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 12:06:15,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:06:15,576 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 12:06:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 12:06:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 12:06:15,576 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 12:06:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 12:06:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 12:06:15,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 12:06:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 12:06:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 12:06:15,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 12:06:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 12:06:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 12:06:15,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 12:06:15,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 12:06:15,722 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 12:06:15,723 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:06:15 BoogieIcfgContainer [2021-07-10 12:06:15,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 12:06:15,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 12:06:15,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 12:06:15,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 12:06:15,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:06:15" (1/2) ... [2021-07-10 12:06:15,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f39433 and model type min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:06:15, skipping insertion in model container [2021-07-10 12:06:15,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:06:15" (2/2) ... [2021-07-10 12:06:15,730 INFO L111 eAbstractionObserver]: Analyzing ICFG min-le-max.wvr.bpl [2021-07-10 12:06:15,735 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 12:06:15,735 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 12:06:15,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 12:06:15,736 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 12:06:15,767 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 12:06:15,787 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 12:06:15,843 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 12:06:15,844 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 12:06:15,844 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 12:06:15,844 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 12:06:15,844 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 12:06:15,844 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 12:06:15,844 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 12:06:15,845 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 12:06:16,012 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:06:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:06:16,025 INFO L82 PathProgramCache]: Analyzing trace with hash -571376720, now seen corresponding path program 1 times [2021-07-10 12:06:16,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:06:16,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186900503] [2021-07-10 12:06:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:06:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:06:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:06:16,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:06:16,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186900503] [2021-07-10 12:06:16,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186900503] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:06:16,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626777184] [2021-07-10 12:06:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:06:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:06:16,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 12:06:16,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:06:16,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 12:06:16,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 12:06:16,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 12:06:16,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 12:06:16,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-10 12:06:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:06:16,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626777184] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:06:16,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:06:16,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-07-10 12:06:16,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247550145] [2021-07-10 12:06:16,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 12:06:16,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:06:16,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 12:06:16,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-10 12:06:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:06:16,467 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:06:16,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:06:16,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:06:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:06:16,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-10 12:06:16,850 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 12:06:16,852 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 12:06:16 BasicIcfg [2021-07-10 12:06:16,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 12:06:16,853 INFO L168 Benchmark]: Toolchain (without parser) took 1376.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 238.9 MB in the end (delta: -4.1 MB). Peak memory consumption was 48.9 MB. Max. memory is 8.0 GB. [2021-07-10 12:06:16,853 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 235.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:06:16,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:06:16,854 INFO L168 Benchmark]: Boogie Preprocessor took 13.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 232.3 MB in the end (delta: 995.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:06:16,854 INFO L168 Benchmark]: RCFGBuilder took 202.04 ms. Allocated memory is still 255.9 MB. Free memory was 232.3 MB in the beginning and 221.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-10 12:06:16,855 INFO L168 Benchmark]: TraceAbstraction took 1127.26 ms. Allocated memory is still 255.9 MB. Free memory was 221.0 MB in the beginning and 238.9 MB in the end (delta: -17.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. [2021-07-10 12:06:16,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 235.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 232.3 MB in the end (delta: 995.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 202.04 ms. Allocated memory is still 255.9 MB. Free memory was 232.3 MB in the beginning and 221.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1127.26 ms. Allocated memory is still 255.9 MB. Free memory was 221.0 MB in the beginning and 238.9 MB in the end (delta: -17.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 578, positive: 538, positive conditional: 251, positive unconditional: 287, negative: 40, negative conditional: 34, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 551, positive: 538, positive conditional: 251, positive unconditional: 287, negative: 13, negative conditional: 7, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 551, positive: 511, positive conditional: 0, positive unconditional: 511, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 551, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 225, unknown conditional: 0, unknown unconditional: 225] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 229, Positive conditional cache size: 8, Positive unconditional cache size: 221, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, SemanticConditionEliminator.Independence Queries: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 229, Positive conditional cache size: 8, Positive unconditional cache size: 221, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 27 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 117, Number of persistent set computation: 32, Number of trivial persistent sets: 12, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 578, positive: 538, positive conditional: 251, positive unconditional: 287, negative: 40, negative conditional: 34, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 551, positive: 538, positive conditional: 251, positive unconditional: 287, negative: 13, negative conditional: 7, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 551, positive: 511, positive conditional: 0, positive unconditional: 511, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 551, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 225, unknown conditional: 0, unknown unconditional: 225] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 229, Positive conditional cache size: 8, Positive unconditional cache size: 221, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, SemanticConditionEliminator.Independence Queries: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 229, Positive conditional cache size: 8, Positive unconditional cache size: 221, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 27 - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1048.9ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.3ms, PartialOrderReductionTime: 287.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 52.1ms SatisfiabilityAnalysisTime, 255.2ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 5 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 0/4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...