/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-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 02:43:45,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 02:43:45,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 02:43:45,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 02:43:45,819 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-DelaySleep-NoLbe-Random7777.epf [2021-06-07 02:43:45,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 02:43:45,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 02:43:45,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 02:43:45,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 02:43:45,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 02:43:45,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 02:43:45,856 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 02:43:45,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 02:43:45,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 02:43:45,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 02:43:45,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 02:43:45,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 02:43:45,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 02:43:45,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 02:43:45,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 02:43:45,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 02:43:45,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 02:43:45,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 02:43:45,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 02:43:45,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 02:43:45,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 02:43:45,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 02:43:45,861 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 02:43:45,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 02:43:45,861 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 02:43:46,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 02:43:46,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 02:43:46,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 02:43:46,187 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 02:43:46,188 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 02:43:46,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2021-06-07 02:43:46,189 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2021-06-07 02:43:46,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 02:43:46,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 02:43:46,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 02:43:46,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 02:43:46,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 02:43:46,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 02:43:46,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 02:43:46,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 02:43:46,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 02:43:46,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/1) ... [2021-06-07 02:43:46,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 02:43:46,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 02:43:46,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 02:43:46,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 02:43:46,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (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 [2021-06-07 02:43:46,344 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 02:43:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 02:43:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 02:43:46,344 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 02:43:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 02:43:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 02:43:46,345 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 02:43:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 02:43:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 02:43:46,345 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 02:43:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 02:43:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 02:43:46,346 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-07 02:43:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-07 02:43:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-07 02:43:46,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 02:43:46,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 02:43:46,560 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 02:43:46,574 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 02:43:46 BoogieIcfgContainer [2021-06-07 02:43:46,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 02:43:46,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 02:43:46,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 02:43:46,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 02:43:46,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 02:43:46" (1/2) ... [2021-06-07 02:43:46,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145fd105 and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 02:43:46, skipping insertion in model container [2021-06-07 02:43:46,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 02:43:46" (2/2) ... [2021-06-07 02:43:46,580 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2021-06-07 02:43:46,585 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 02:43:46,585 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 02:43:46,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 02:43:46,586 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 02:43:46,672 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-07 02:43:46,689 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-06-07 02:43:46,722 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 02:43:46,722 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 02:43:46,722 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 02:43:46,722 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 02:43:46,722 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 02:43:46,722 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 02:43:46,722 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 02:43:46,722 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 02:43:46,851 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 02:43:46,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 02:43:46,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1791384803, now seen corresponding path program 1 times [2021-06-07 02:43:46,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 02:43:46,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372273751] [2021-06-07 02:43:46,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 02:43:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 02:43:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-06-07 02:43:47,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 02:43:47,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372273751] [2021-06-07 02:43:47,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372273751] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 02:43:47,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434325173] [2021-06-07 02:43:47,183 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 [2021-06-07 02:43:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 02:43:47,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-07 02:43:47,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 02:43:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-06-07 02:43:47,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434325173] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 02:43:47,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 02:43:47,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-07 02:43:47,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127981343] [2021-06-07 02:43:47,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 02:43:47,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 02:43:47,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 02:43:47,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 02:43:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 02:43:47,640 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 02:43:47,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-06-07 02:43:47,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 02:43:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 02:43:47,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-07 02:43:47,968 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 02:43:47,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 02:43:47,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2102069382, now seen corresponding path program 1 times [2021-06-07 02:43:47,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 02:43:47,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827747905] [2021-06-07 02:43:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 02:43:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 02:43:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 02:43:49,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 02:43:49,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827747905] [2021-06-07 02:43:49,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827747905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 02:43:49,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452885415] [2021-06-07 02:43:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-07 02:43:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 02:43:49,842 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 173 conjunts are in the unsatisfiable core [2021-06-07 02:43:49,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 02:43:56,117 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-06-07 02:43:56,886 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-07 02:43:58,921 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-06-07 02:44:01,567 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-06-07 02:44:05,833 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-07 02:44:08,574 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-06-07 02:44:11,156 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-06-07 02:44:16,704 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-06-07 02:44:19,545 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-06-07 02:44:26,633 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-06-07 02:44:28,784 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-06-07 02:44:36,375 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 02:44:45,359 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-07 02:45:00,262 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-06-07 02:45:14,376 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-07 02:45:34,340 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-06-07 02:45:58,480 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-07 02:46:24,518 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-07 02:46:53,449 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-06-07 02:47:21,215 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-06-07 02:47:57,809 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-06-07 02:48:32,085 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-07 02:49:13,105 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-06-07 02:49:47,436 WARN L205 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-06-07 02:50:18,600 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-07 02:50:46,932 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-06-07 02:51:23,163 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-07 02:52:13,338 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-06-07 02:53:02,107 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 250 [2021-06-07 02:53:44,869 WARN L205 SmtUtils]: Spent 4.28 s on a formula simplification that was a NOOP. DAG size: 256 [2021-06-07 02:53:55,980 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 264 [2021-06-07 02:54:01,166 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 271 [2021-06-07 02:54:14,902 WARN L205 SmtUtils]: Spent 4.42 s on a formula simplification that was a NOOP. DAG size: 274 [2021-06-07 02:54:19,913 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2021-06-07 02:54:27,567 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 287 [2021-06-07 02:54:41,326 WARN L205 SmtUtils]: Spent 4.80 s on a formula simplification that was a NOOP. DAG size: 290 [2021-06-07 02:54:46,602 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 297 [2021-06-07 02:55:05,460 WARN L205 SmtUtils]: Spent 4.54 s on a formula simplification that was a NOOP. DAG size: 300 [2021-06-07 02:55:17,871 WARN L205 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 303 [2021-06-07 02:55:32,583 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-07 02:55:44,765 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 309 [2021-06-07 02:55:53,384 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 312 [2021-06-07 02:56:08,428 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2021-06-07 02:56:34,567 WARN L205 SmtUtils]: Spent 4.67 s on a formula simplification that was a NOOP. DAG size: 318 [2021-06-07 02:56:55,680 WARN L205 SmtUtils]: Spent 3.16 s on a formula simplification that was a NOOP. DAG size: 321 [2021-06-07 02:57:21,259 WARN L205 SmtUtils]: Spent 6.72 s on a formula simplification that was a NOOP. DAG size: 331 [2021-06-07 02:57:45,637 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 337 [2021-06-07 02:58:07,553 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification that was a NOOP. DAG size: 343 Received shutdown request... [2021-06-07 02:58:32,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 02:58:32,766 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-07 02:58:32,771 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 02:58:32,772 WARN L196 ceAbstractionStarter]: Timeout [2021-06-07 02:58:32,772 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 02:58:32 BasicIcfg [2021-06-07 02:58:32,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 02:58:32,773 INFO L168 Benchmark]: Toolchain (without parser) took 886562.25 ms. Allocated memory was 337.6 MB in the beginning and 450.9 MB in the end (delta: 113.2 MB). Free memory was 317.1 MB in the beginning and 404.2 MB in the end (delta: -87.1 MB). Peak memory consumption was 273.5 MB. Max. memory is 16.0 GB. [2021-06-07 02:58:32,773 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 337.6 MB. Free memory was 318.3 MB in the beginning and 318.2 MB in the end (delta: 65.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 02:58:32,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.66 ms. Allocated memory is still 337.6 MB. Free memory was 317.0 MB in the beginning and 315.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 02:58:32,774 INFO L168 Benchmark]: Boogie Preprocessor took 32.70 ms. Allocated memory is still 337.6 MB. Free memory was 315.6 MB in the beginning and 314.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-07 02:58:32,774 INFO L168 Benchmark]: RCFGBuilder took 299.68 ms. Allocated memory is still 337.6 MB. Free memory was 314.4 MB in the beginning and 300.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-07 02:58:32,776 INFO L168 Benchmark]: TraceAbstraction took 886196.88 ms. Allocated memory was 337.6 MB in the beginning and 450.9 MB in the end (delta: 113.2 MB). Free memory was 300.0 MB in the beginning and 404.2 MB in the end (delta: -104.2 MB). Peak memory consumption was 254.7 MB. Max. memory is 16.0 GB. [2021-06-07 02:58:32,778 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 0.15 ms. Allocated memory is still 337.6 MB. Free memory was 318.3 MB in the beginning and 318.2 MB in the end (delta: 65.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.66 ms. Allocated memory is still 337.6 MB. Free memory was 317.0 MB in the beginning and 315.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.70 ms. Allocated memory is still 337.6 MB. Free memory was 315.6 MB in the beginning and 314.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 299.68 ms. Allocated memory is still 337.6 MB. Free memory was 314.4 MB in the beginning and 300.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 886196.88 ms. Allocated memory was 337.6 MB in the beginning and 450.9 MB in the end (delta: 113.2 MB). Free memory was 300.0 MB in the beginning and 404.2 MB in the end (delta: -104.2 MB). Peak memory consumption was 254.7 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: 1848, positive: 1724, positive conditional: 1724, positive unconditional: 0, negative: 124, negative conditional: 124, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1724, positive: 1724, positive conditional: 1724, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1724, positive: 1724, positive conditional: 0, positive unconditional: 1724, 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: 550, positive: 550, positive conditional: 0, positive unconditional: 550, 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: 550, positive: 550, positive conditional: 0, positive unconditional: 550, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 1724, positive: 1174, positive conditional: 0, positive unconditional: 1174, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 550, Positive cache size: 550, Positive conditional cache size: 0, Positive unconditional cache size: 550, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: 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: 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] , Statistics on independence cache: Total cache size (in pairs): 550, Positive cache size: 550, Positive conditional cache size: 0, Positive unconditional cache size: 550, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 124 - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 116 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 105 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 886068.8ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.5ms, PartialOrderReductionTime: 220.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 37.3ms SsaConstructionTime, 182.3ms SatisfiabilityAnalysisTime, 436.3ms InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 410 SizeOfPredicates, 1 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 366/372 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