/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 01:26:43,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 01:26:43,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 01:26:44,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 01:26:44,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 01:26:44,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 01:26:44,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 01:26:44,069 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.epf [2021-07-10 01:26:44,103 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 01:26:44,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 01:26:44,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 01:26:44,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 01:26:44,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 01:26:44,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 01:26:44,106 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 01:26:44,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 01:26:44,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 01:26:44,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 01:26:44,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 01:26:44,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 01:26:44,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 01:26:44,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 01:26:44,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 01:26:44,111 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 01:26:44,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 01:26:44,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 01:26:44,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 01:26:44,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 01:26:44,440 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 01:26:44,442 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 01:26:44,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-07-10 01:26:44,443 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-07-10 01:26:44,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 01:26:44,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 01:26:44,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 01:26:44,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 01:26:44,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 01:26:44,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 01:26:44,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 01:26:44,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 01:26:44,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 01:26:44,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... [2021-07-10 01:26:44,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 01:26:44,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 01:26:44,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 01:26:44,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 01:26:44,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 01:26:44,566 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 01:26:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 01:26:44,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 01:26:44,567 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 01:26:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 01:26:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 01:26:44,567 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 01:26:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 01:26:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 01:26:44,567 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 01:26:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 01:26:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 01:26:44,568 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-10 01:26:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-10 01:26:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-10 01:26:44,569 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 01:26:44,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 01:26:44,729 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 01:26:44,731 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:26:44 BoogieIcfgContainer [2021-07-10 01:26:44,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 01:26:44,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 01:26:44,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 01:26:44,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 01:26:44,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:26:44" (1/2) ... [2021-07-10 01:26:44,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463e3484 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 01:26:44, skipping insertion in model container [2021-07-10 01:26:44,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:26:44" (2/2) ... [2021-07-10 01:26:44,737 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-07-10 01:26:44,742 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 01:26:44,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 01:26:44,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 01:26:44,743 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 01:26:44,787 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-10 01:26:44,832 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 [2021-07-10 01:26:44,931 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 01:26:44,931 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 01:26:44,931 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 01:26:44,932 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 01:26:44,932 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 01:26:44,932 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 01:26:44,932 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 01:26:44,932 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 01:26:45,217 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:26:45,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:26:45,225 INFO L82 PathProgramCache]: Analyzing trace with hash 53533191, now seen corresponding path program 1 times [2021-07-10 01:26:45,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:26:45,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559778634] [2021-07-10 01:26:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:26:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:26:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:26:45,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:26:45,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559778634] [2021-07-10 01:26:45,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559778634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 01:26:45,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 01:26:45,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 01:26:45,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195041826] [2021-07-10 01:26:45,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 01:26:45,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:26:45,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 01:26:45,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 01:26:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:26:45,469 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:26:45,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:26:45,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:26:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 01:26:45,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 01:26:45,634 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:26:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:26:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1220131186, now seen corresponding path program 1 times [2021-07-10 01:26:45,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:26:45,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650251349] [2021-07-10 01:26:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:26:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:26:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:26:45,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:26:45,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650251349] [2021-07-10 01:26:45,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650251349] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:26:45,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96023449] [2021-07-10 01:26:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:26:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:26:45,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-10 01:26:45,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:26:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:26:45,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96023449] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:26:45,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:26:45,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-10 01:26:45,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570837053] [2021-07-10 01:26:45,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 01:26:45,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:26:45,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 01:26:45,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 01:26:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:26:45,911 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:26:45,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:26:45,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 01:26:45,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:26:46,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 01:26:46,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:26:46,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:26:46,237 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:26:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:26:46,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1223366762, now seen corresponding path program 1 times [2021-07-10 01:26:46,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:26:46,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356154039] [2021-07-10 01:26:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:26:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:26:46,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:26:46,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:26:46,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356154039] [2021-07-10 01:26:46,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356154039] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:26:46,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334010943] [2021-07-10 01:26:46,430 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 [2021-07-10 01:26:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:26:46,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-10 01:26:46,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-07-10 01:40:57,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:40:57,292 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-10 01:40:57,302 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 01:40:57,304 WARN L196 ceAbstractionStarter]: Timeout [2021-07-10 01:40:57,304 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 01:40:57 BasicIcfg [2021-07-10 01:40:57,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 01:40:57,305 INFO L168 Benchmark]: Toolchain (without parser) took 852838.29 ms. Allocated memory was 255.9 MB in the beginning and 1.3 GB in the end (delta: 996.1 MB). Free memory was 234.8 MB in the beginning and 375.6 MB in the end (delta: -140.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-10 01:40:57,305 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 235.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 01:40:57,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.80 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 01:40:57,305 INFO L168 Benchmark]: Boogie Preprocessor took 14.87 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 232.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 01:40:57,305 INFO L168 Benchmark]: RCFGBuilder took 222.88 ms. Allocated memory is still 255.9 MB. Free memory was 232.2 MB in the beginning and 219.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 01:40:57,306 INFO L168 Benchmark]: TraceAbstraction took 852571.81 ms. Allocated memory was 255.9 MB in the beginning and 1.3 GB in the end (delta: 996.1 MB). Free memory was 219.0 MB in the beginning and 375.6 MB in the end (delta: -156.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-10 01:40:57,306 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 255.9 MB. Free memory is still 235.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.80 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.87 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 232.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 222.88 ms. Allocated memory is still 255.9 MB. Free memory was 232.2 MB in the beginning and 219.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 852571.81 ms. Allocated memory was 255.9 MB in the beginning and 1.3 GB in the end (delta: 996.1 MB). Free memory was 219.0 MB in the beginning and 375.6 MB in the end (delta: -156.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14179, positive: 13204, positive conditional: 13204, positive unconditional: 0, negative: 975, negative conditional: 975, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 13204, positive: 13204, positive conditional: 13204, 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: 13204, positive: 13204, positive conditional: 0, positive unconditional: 13204, 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: 297, positive: 297, positive conditional: 0, positive unconditional: 297, 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: 297, positive: 297, positive conditional: 0, positive unconditional: 297, 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: 13204, positive: 12907, positive conditional: 0, positive unconditional: 12907, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 297, unknown conditional: 0, unknown unconditional: 297] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, 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): 297, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 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): 297, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, 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: 975 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 30 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 447 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 852439.5ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.3ms, PartialOrderReductionTime: 534.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 25.7ms SsaConstructionTime, 54.7ms SatisfiabilityAnalysisTime, 309.9ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 1 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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