/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-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 16:09:00,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 16:09:00,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 16:09:00,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 16:09:00,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 16:09:00,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 16:09:00,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 16:09:00,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 16:09:00,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 16:09:00,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 16:09:00,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 16:09:00,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 16:09:00,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 16:09:00,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 16:09:00,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 16:09:00,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 16:09:00,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 16:09:00,404 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-FA-SemanticLbe.epf [2021-03-11 16:09:00,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 16:09:00,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 16:09:00,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 16:09:00,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 16:09:00,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 16:09:00,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 16:09:00,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 16:09:00,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 16:09:00,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 16:09:00,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 16:09:00,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 16:09:00,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 16:09:00,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 16:09:00,791 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 16:09:00,792 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 16:09:00,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl [2021-03-11 16:09:00,793 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl' [2021-03-11 16:09:00,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 16:09:00,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 16:09:00,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 16:09:00,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 16:09:00,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 16:09:00,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 16:09:00,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 16:09:00,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 16:09:00,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 16:09:00,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/1) ... [2021-03-11 16:09:00,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 16:09:00,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 16:09:00,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 16:09:00,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 16:09:00,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (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 [2021-03-11 16:09:00,949 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 16:09:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 16:09:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 16:09:00,951 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 16:09:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 16:09:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 16:09:00,951 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 16:09:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 16:09:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 16:09:00,952 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 16:09:01,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 16:09:01,133 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 16:09:01,134 INFO L202 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:09:01 BoogieIcfgContainer [2021-03-11 16:09:01,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 16:09:01,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 16:09:01,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 16:09:01,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 16:09:01,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:09:00" (1/2) ... [2021-03-11 16:09:01,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8ccebf and model type misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:09:01, skipping insertion in model container [2021-03-11 16:09:01,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:09:01" (2/2) ... [2021-03-11 16:09:01,139 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled-atomic.wvr.bpl [2021-03-11 16:09:01,143 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 16:09:01,143 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 16:09:01,145 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 16:09:01,146 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 16:09:01,196 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-11 16:09:01,223 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 16:09:01,236 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 16:09:01,236 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 16:09:01,236 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 16:09:01,236 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 16:09:01,237 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 16:09:01,237 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 16:09:01,237 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 16:09:01,237 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 16:09:01,257 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 16:09:01,265 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 54 flow [2021-03-11 16:09:01,266 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 54 flow [2021-03-11 16:09:01,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 54 flow [2021-03-11 16:09:01,294 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-03-11 16:09:01,294 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 16:09:01,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 2/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-11 16:09:01,296 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 16:09:01,442 INFO L131 LiptonReduction]: Checked pairs total: 37 [2021-03-11 16:09:01,442 INFO L133 LiptonReduction]: Total number of compositions: 7 [2021-03-11 16:09:01,448 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 13 transitions, 42 flow [2021-03-11 16:09:01,452 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 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) [2021-03-11 16:09:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 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) [2021-03-11 16:09:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-03-11 16:09:01,456 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:09:01,457 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:09:01,457 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:09:01,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:09:01,460 INFO L82 PathProgramCache]: Analyzing trace with hash -408939144, now seen corresponding path program 1 times [2021-03-11 16:09:01,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:09:01,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496005369] [2021-03-11 16:09:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:09:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:09:01,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:09:01,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:09:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:09:01,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496005369] [2021-03-11 16:09:01,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:09:01,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 16:09:01,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445402970] [2021-03-11 16:09:01,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 16:09:01,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:09:01,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 16:09:01,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:09:01,560 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 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) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-03-11 16:09:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:09:01,571 INFO L93 Difference]: Finished difference Result 11 states and 19 transitions. [2021-03-11 16:09:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:09:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2021-03-11 16:09:01,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:09:01,576 INFO L225 Difference]: With dead ends: 11 [2021-03-11 16:09:01,576 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 16:09:01,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:09:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 16:09:01,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 16:09:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-11 16:09:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 16:09:01,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-03-11 16:09:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:09:01,589 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 16:09:01,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-03-11 16:09:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 16:09:01,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 16:09:01,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 16:09:01,592 INFO L202 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:09:01 BasicIcfg [2021-03-11 16:09:01,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 16:09:01,593 INFO L168 Benchmark]: Toolchain (without parser) took 768.66 ms. Allocated memory is still 255.9 MB. Free memory was 237.0 MB in the beginning and 201.7 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.0 GB. [2021-03-11 16:09:01,593 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 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. [2021-03-11 16:09:01,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.76 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). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 16:09:01,594 INFO L168 Benchmark]: Boogie Preprocessor took 11.09 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: 961.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:09:01,595 INFO L168 Benchmark]: RCFGBuilder took 263.67 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 236.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. [2021-03-11 16:09:01,595 INFO L168 Benchmark]: TraceAbstraction took 456.44 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 201.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-03-11 16:09:01,597 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 0.10 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 26.76 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). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.09 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: 961.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 263.67 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 236.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 456.44 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 201.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 175.9ms, 24 PlacesBefore, 18 PlacesAfterwards, 19 TransitionsBefore, 13 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 49]: 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 355.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 3.9ms, AutomataDifference: 24.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 215.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.2ms SsaConstructionTime, 8.6ms SatisfiabilityAnalysisTime, 35.3ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...