/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 23:48:31,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 23:48:31,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 23:48:31,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 23:48:32,010 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 23:48:32,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 23:48:32,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 23:48:32,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 23:48:32,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 23:48:32,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 23:48:32,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 23:48:32,052 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 23:48:32,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 23:48:32,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 23:48:32,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 23:48:32,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 23:48:32,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 23:48:32,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:48:32,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 23:48:32,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 23:48:32,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 23:48:32,057 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 23:48:32,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 23:48:32,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 23:48:32,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 23:48:32,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 23:48:32,369 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 23:48:32,370 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 23:48:32,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2021-06-13 23:48:32,371 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2021-06-13 23:48:32,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 23:48:32,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 23:48:32,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 23:48:32,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 23:48:32,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 23:48:32,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 23:48:32,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 23:48:32,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 23:48:32,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 23:48:32,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/1) ... [2021-06-13 23:48:32,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 23:48:32,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 23:48:32,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 23:48:32,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 23:48:32,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (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 [2021-06-13 23:48:32,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 23:48:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 23:48:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 23:48:32,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 23:48:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 23:48:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 23:48:32,523 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 23:48:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 23:48:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 23:48:32,524 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 23:48:32,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 23:48:32,690 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 23:48:32,692 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:48:32 BoogieIcfgContainer [2021-06-13 23:48:32,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 23:48:32,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 23:48:32,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 23:48:32,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 23:48:32,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:32" (1/2) ... [2021-06-13 23:48:32,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4570b3a1 and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 11:48:32, skipping insertion in model container [2021-06-13 23:48:32,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:48:32" (2/2) ... [2021-06-13 23:48:32,698 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2021-06-13 23:48:32,702 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 23:48:32,702 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 23:48:32,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 23:48:32,703 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 23:48:32,729 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 23:48:32,762 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-06-13 23:48:32,880 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 23:48:32,880 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 23:48:32,880 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 23:48:32,880 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 23:48:32,880 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 23:48:32,880 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 23:48:32,881 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 23:48:32,881 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 23:48:32,982 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:32,990 INFO L82 PathProgramCache]: Analyzing trace with hash -581527831, now seen corresponding path program 1 times [2021-06-13 23:48:32,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:32,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886442026] [2021-06-13 23:48:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:33,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:33,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886442026] [2021-06-13 23:48:33,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886442026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:33,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494797422] [2021-06-13 23:48:33,277 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 [2021-06-13 23:48:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:33,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-13 23:48:33,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:33,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494797422] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:33,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:33,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 15 [2021-06-13 23:48:33,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839999497] [2021-06-13 23:48:33,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 23:48:33,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:33,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 23:48:33,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-06-13 23:48:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:33,847 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:33,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-06-13 23:48:33,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:34,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-13 23:48:34,277 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:34,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:34,278 INFO L82 PathProgramCache]: Analyzing trace with hash 36106727, now seen corresponding path program 2 times [2021-06-13 23:48:34,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:34,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267665181] [2021-06-13 23:48:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-13 23:48:34,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:34,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267665181] [2021-06-13 23:48:34,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267665181] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:34,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747586508] [2021-06-13 23:48:34,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:34,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 23:48:34,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:34,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-13 23:48:34,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:34,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747586508] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:34,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:34,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 16 [2021-06-13 23:48:34,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954712776] [2021-06-13 23:48:34,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 23:48:34,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:34,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 23:48:34,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-06-13 23:48:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:34,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:34,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 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) [2021-06-13 23:48:34,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:34,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:35,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:35,329 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:35,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1536850135, now seen corresponding path program 3 times [2021-06-13 23:48:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:35,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377335348] [2021-06-13 23:48:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:35,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:35,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377335348] [2021-06-13 23:48:35,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377335348] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:35,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205676239] [2021-06-13 23:48:35,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:35,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-13 23:48:35,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:35,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-13 23:48:35,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 5 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:37,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205676239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:37,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:37,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 37 [2021-06-13 23:48:37,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382364850] [2021-06-13 23:48:37,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-13 23:48:37,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:37,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-13 23:48:37,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2021-06-13 23:48:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:37,187 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:37,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 37 states have internal predecessors, (74), 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) [2021-06-13 23:48:37,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:38,649 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2021-06-13 23:48:39,862 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-06-13 23:48:40,554 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-06-13 23:48:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:41,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-13 23:48:41,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:41,399 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:41,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:41,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1472784311, now seen corresponding path program 4 times [2021-06-13 23:48:41,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:41,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434711443] [2021-06-13 23:48:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-13 23:48:41,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:41,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434711443] [2021-06-13 23:48:41,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434711443] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:41,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730585673] [2021-06-13 23:48:41,972 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:42,010 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 23:48:42,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:42,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 55 conjunts are in the unsatisfiable core [2021-06-13 23:48:42,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:43,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730585673] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:43,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:43,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 48 [2021-06-13 23:48:43,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388145821] [2021-06-13 23:48:43,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-13 23:48:43,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:43,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-13 23:48:43,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2208, Unknown=0, NotChecked=0, Total=2352 [2021-06-13 23:48:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:43,885 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:43,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 48 states have internal predecessors, (95), 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) [2021-06-13 23:48:43,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:43,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:43,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-13 23:48:43,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 23:48:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-13 23:48:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-06-13 23:48:49,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-06-13 23:48:49,722 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:49,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1048345505, now seen corresponding path program 5 times [2021-06-13 23:48:49,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:49,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235548736] [2021-06-13 23:48:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 35 proven. 45 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-13 23:48:49,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:49,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235548736] [2021-06-13 23:48:49,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235548736] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:49,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852911156] [2021-06-13 23:48:49,843 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:49,900 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-06-13 23:48:49,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:49,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 51 conjunts are in the unsatisfiable core [2021-06-13 23:48:49,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-06-14 00:03:17,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:17,360 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-14 00:03:17,365 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-14 00:03:17,366 WARN L196 ceAbstractionStarter]: Timeout [2021-06-14 00:03:17,366 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 12:03:17 BasicIcfg [2021-06-14 00:03:17,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 00:03:17,370 INFO L168 Benchmark]: Toolchain (without parser) took 884964.15 ms. Allocated memory was 185.6 MB in the beginning and 596.6 MB in the end (delta: 411.0 MB). Free memory was 164.7 MB in the beginning and 328.5 MB in the end (delta: -163.8 MB). Peak memory consumption was 376.7 MB. Max. memory is 8.0 GB. [2021-06-14 00:03:17,370 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 185.6 MB. Free memory is still 165.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 00:03:17,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.17 ms. Allocated memory is still 185.6 MB. Free memory was 164.7 MB in the beginning and 163.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 00:03:17,370 INFO L168 Benchmark]: Boogie Preprocessor took 11.64 ms. Allocated memory is still 185.6 MB. Free memory was 163.2 MB in the beginning and 162.3 MB in the end (delta: 940.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 00:03:17,370 INFO L168 Benchmark]: RCFGBuilder took 252.30 ms. Allocated memory is still 185.6 MB. Free memory was 162.1 MB in the beginning and 150.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-14 00:03:17,370 INFO L168 Benchmark]: TraceAbstraction took 884675.66 ms. Allocated memory was 185.6 MB in the beginning and 596.6 MB in the end (delta: 411.0 MB). Free memory was 150.2 MB in the beginning and 328.5 MB in the end (delta: -178.3 MB). Peak memory consumption was 362.0 MB. Max. memory is 8.0 GB. [2021-06-14 00:03:17,371 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 0.16 ms. Allocated memory is still 185.6 MB. Free memory is still 165.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.17 ms. Allocated memory is still 185.6 MB. Free memory was 164.7 MB in the beginning and 163.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.64 ms. Allocated memory is still 185.6 MB. Free memory was 163.2 MB in the beginning and 162.3 MB in the end (delta: 940.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 252.30 ms. Allocated memory is still 185.6 MB. Free memory was 162.1 MB in the beginning and 150.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 884675.66 ms. Allocated memory was 185.6 MB in the beginning and 596.6 MB in the end (delta: 411.0 MB). Free memory was 150.2 MB in the beginning and 328.5 MB in the end (delta: -178.3 MB). Peak memory consumption was 362.0 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: 414, positive: 270, positive conditional: 270, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 285, positive: 270, positive conditional: 270, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 285, positive: 257, positive conditional: 0, positive unconditional: 257, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 33, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 21, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 15, negative conditional: 13, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 105, negative conditional: 43, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 285, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 13, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 15, negative conditional: 13, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 105, negative conditional: 43, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 13, Negative unconditional cache size: 2, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 15, negative conditional: 13, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 105, negative conditional: 43, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 13, Negative unconditional cache size: 2, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 15, negative conditional: 13, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 105, negative conditional: 43, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 13, Negative unconditional cache size: 2, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 15, negative conditional: 13, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 105, negative conditional: 43, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 13, Negative unconditional cache size: 2, Eliminated conditions: 0 ], Maximal queried relation: 4, Independence queries for same thread: 129 - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 56 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while ExplicitLhsPolynomialRelations was build 0 of 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 884572.5ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 10368.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 147, 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: 52.2ms SsaConstructionTime, 195.6ms SatisfiabilityAnalysisTime, 5139.1ms InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 4413 SizeOfPredicates, 13 NumberOfNonLiveVariables, 321 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 53/602 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 could not prove your program: Timeout Completed graceful shutdown