/usr/bin/java -Xmx16000000000 -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-Sleep-NoLbe-Delay.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 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 10:33:53,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 10:33:53,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 10:33:53,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 10:33:53,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 10:33:53,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 10:33:53,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 10:33:53,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 10:33:53,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 10:33:53,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 10:33:53,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 10:33:53,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-03-12 10:33:54,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 10:33:54,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 10:33:54,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 10:33:54,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 10:33:54,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 10:33:54,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 10:33:54,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 10:33:54,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 10:33:54,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 10:33:54,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 10:33:54,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 10:33:54,033 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-Sleep-NoLbe-Delay.epf [2021-03-12 10:33:54,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 10:33:54,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 10:33:54,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 10:33:54,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 10:33:54,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 10:33:54,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 10:33:54,082 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 10:33:54,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 10:33:54,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 10:33:54,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 10:33:54,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 10:33:54,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 10:33:54,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 10:33:54,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 10:33:54,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 10:33:54,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 10:33:54,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 10:33:54,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 10:33:54,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 10:33:54,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 10:33:54,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 10:33:54,087 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 10:33:54,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 10:33:54,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 10:33:54,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 10:33:54,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 10:33:54,423 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 10:33:54,424 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 10:33:54,425 INFO L432 ainManager$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 [2021-03-12 10:33:54,425 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' [2021-03-12 10:33:54,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 10:33:54,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 10:33:54,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 10:33:54,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 10:33:54,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 10:33:54,482 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,492 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 10:33:54,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 10:33:54,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 10:33:54,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 10:33:54,510 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,510 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,511 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,511 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,513 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,515 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,516 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 12.03 10:33:54" (1/1) ... [2021-03-12 10:33:54,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 10:33:54,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 10:33:54,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 10:33:54,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 10:33:54,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:33:54" (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 [2021-03-12 10:33:54,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 10:33:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 10:33:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 10:33:54,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 10:33:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 10:33:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 10:33:54,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 10:33:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 10:33:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 10:33:54,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 10:33:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 10:33:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 10:33:54,584 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 10:33:54,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 10:33:54,713 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 10:33:54,714 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:33:54 BoogieIcfgContainer [2021-03-12 10:33:54,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 10:33:54,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 10:33:54,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 10:33:54,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 10:33:54,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:33:54" (1/2) ... [2021-03-12 10:33:54,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1104b049 and model type min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 10:33:54, skipping insertion in model container [2021-03-12 10:33:54,718 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 12.03 10:33:54" (2/2) ... [2021-03-12 10:33:54,720 INFO L111 eAbstractionObserver]: Analyzing ICFG min-le-max.wvr.bpl [2021-03-12 10:33:54,724 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 10:33:54,724 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 10:33:54,727 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 10:33:54,727 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 10:33:54,781 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-12 10:33:54,807 INFO L253 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 [2021-03-12 10:33:54,846 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 10:33:54,846 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 10:33:54,846 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 10:33:54,846 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 10:33:54,846 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 10:33:54,847 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 10:33:54,847 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 10:33:54,847 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 10:33:54,941 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:33:54,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:33:54,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1818111078, now seen corresponding path program 1 times [2021-03-12 10:33:54,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:33:54,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849321201] [2021-03-12 10:33:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:33:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:33:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:33:55,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849321201] [2021-03-12 10:33:55,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421174499] [2021-03-12 10:33:55,237 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 [2021-03-12 10:33:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:33:55,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 10:33:55,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:33:55,432 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 [2021-03-12 10:33:55,440 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:33:55,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:33:55,442 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:33:55,442 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-03-12 10:33:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:33:55,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:33:55,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-03-12 10:33:55,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249319051] [2021-03-12 10:33:55,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 10:33:55,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:33:55,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 10:33:55,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-12 10:33:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:33:55,513 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:33:55,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-03-12 10:33:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:33:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:33:55,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-03-12 10:33:55,979 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 10:33:55 BasicIcfg [2021-03-12 10:33:55,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 10:33:55,980 INFO L168 Benchmark]: Toolchain (without parser) took 1516.18 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 237.1 MB in the beginning and 332.3 MB in the end (delta: -95.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.0 GB. [2021-03-12 10:33:55,981 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 238.2 MB in the beginning and 238.2 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 10:33:55,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.16 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 10:33:55,981 INFO L168 Benchmark]: Boogie Preprocessor took 17.76 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 960.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 10:33:55,982 INFO L168 Benchmark]: RCFGBuilder took 194.61 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 238.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.0 GB. [2021-03-12 10:33:55,982 INFO L168 Benchmark]: TraceAbstraction took 1264.22 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 238.7 MB in the beginning and 332.3 MB in the end (delta: -93.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.0 GB. [2021-03-12 10:33:55,984 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 238.2 MB in the beginning and 238.2 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.16 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.76 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 960.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 194.61 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 238.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1264.22 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 238.7 MB in the beginning and 332.3 MB in the end (delta: -93.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 854, positive: 794, positive conditional: 794, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 799, positive: 794, positive conditional: 794, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 799, positive: 753, positive conditional: 0, positive unconditional: 753, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 799, positive: 685, positive conditional: 0, positive unconditional: 685, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 76, Positive conditional cache size: 8, Positive unconditional cache size: 68, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, 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: 41, positive: 41, positive conditional: 41, 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: 10, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 41, positive: 33, positive conditional: 33, 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): 78, Positive cache size: 76, Positive conditional cache size: 8, Positive unconditional cache size: 68, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 55 - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1157.0ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 323.6ms, 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: 15.2ms SsaConstructionTime, 57.1ms SatisfiabilityAnalysisTime, 378.2ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...