/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-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 04:01:53,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 04:01:53,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 04:01:53,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 04:01:53,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 04:01:53,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 04:01:53,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 04:01:53,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 04:01:53,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 04:01:53,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 04:01:53,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 04:01:53,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 04:01:53,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 04:01:53,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 04:01:53,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 04:01:53,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 04:01:53,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-14 04:01:53,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-14 04:01:53,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-14 04:01:53,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-14 04:01:53,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-14 04:01:53,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-14 04:01:53,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-14 04:01:53,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-14 04:01:53,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-14 04:01:53,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-14 04:01:53,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-14 04:01:53,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-14 04:01:53,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-14 04:01:53,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-14 04:01:53,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 04:01:53,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 04:01:53,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 04:01:53,854 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-Random42.epf [2021-06-14 04:01:53,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 04:01:53,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 04:01:53,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 04:01:53,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 04:01:53,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 04:01:53,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 04:01:53,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 04:01:53,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 04:01:53,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 04:01:53,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 04:01:53,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 04:01:53,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 04:01:53,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 04:01:53,883 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 04:01:54,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 04:01:54,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 04:01:54,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 04:01:54,123 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 04:01:54,124 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 04:01:54,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-06-14 04:01:54,125 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-06-14 04:01:54,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 04:01:54,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 04:01:54,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 04:01:54,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 04:01:54,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 04:01:54,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 04:01:54,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 04:01:54,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 04:01:54,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 04:01:54,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... [2021-06-14 04:01:54,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 04:01:54,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 04:01:54,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 04:01:54,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 04:01:54,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 04:01:54,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 04:01:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 04:01:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 04:01:54,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 04:01:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 04:01:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 04:01:54,262 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 04:01:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 04:01:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 04:01:54,262 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 04:01:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 04:01:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 04:01:54,262 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-14 04:01:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-14 04:01:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-14 04:01:54,263 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 04:01:54,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 04:01:54,403 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 04:01:54,404 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 04:01:54 BoogieIcfgContainer [2021-06-14 04:01:54,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 04:01:54,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 04:01:54,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 04:01:54,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 04:01:54,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 04:01:54" (1/2) ... [2021-06-14 04:01:54,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7b0b7f and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 04:01:54, skipping insertion in model container [2021-06-14 04:01:54,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 04:01:54" (2/2) ... [2021-06-14 04:01:54,409 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-06-14 04:01:54,427 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 04:01:54,428 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 04:01:54,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 04:01:54,428 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 04:01:54,480 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-14 04:01:54,494 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 [2021-06-14 04:01:54,524 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 04:01:54,524 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 04:01:54,524 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 04:01:54,524 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 04:01:54,524 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 04:01:54,524 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 04:01:54,524 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 04:01:54,524 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 04:01:54,555 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 04:01:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 04:01:54,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1019101839, now seen corresponding path program 1 times [2021-06-14 04:01:54,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 04:01:54,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948556357] [2021-06-14 04:01:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 04:01:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 04:01:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-14 04:01:54,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 04:01:54,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948556357] [2021-06-14 04:01:54,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948556357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 04:01:54,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 04:01:54,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 04:01:54,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952801649] [2021-06-14 04:01:54,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 04:01:54,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 04:01:54,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 04:01:54,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 04:01:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 04:01:54,679 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 04:01:54,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-14 04:01:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 04:01:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 04:01:54,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 04:01:54,763 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 04:01:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 04:01:54,764 INFO L82 PathProgramCache]: Analyzing trace with hash 4163942, now seen corresponding path program 1 times [2021-06-14 04:01:54,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 04:01:54,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866275131] [2021-06-14 04:01:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 04:01:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 04:01:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-14 04:01:54,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 04:01:54,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866275131] [2021-06-14 04:01:54,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866275131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 04:01:54,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 04:01:54,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 04:01:54,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720685877] [2021-06-14 04:01:54,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 04:01:54,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 04:01:54,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 04:01:54,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 04:01:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 04:01:54,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 04:01:54,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-06-14 04:01:54,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 04:01:54,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 04:01:54,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 04:01:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 04:01:54,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-14 04:01:54,838 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 04:01:54,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 04:01:54,840 INFO L82 PathProgramCache]: Analyzing trace with hash 421653494, now seen corresponding path program 1 times [2021-06-14 04:01:54,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 04:01:54,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179559566] [2021-06-14 04:01:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 04:01:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 04:01:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 04:01:54,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 04:01:54,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179559566] [2021-06-14 04:01:54,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179559566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 04:01:54,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673807992] [2021-06-14 04:01:54,987 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 [2021-06-14 04:01:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 04:01:55,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-14 04:01:55,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-06-14 04:16:27,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 04:16:27,499 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-14 04:16:27,503 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-14 04:16:27,504 WARN L196 ceAbstractionStarter]: Timeout [2021-06-14 04:16:27,504 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 04:16:27 BasicIcfg [2021-06-14 04:16:27,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 04:16:27,505 INFO L168 Benchmark]: Toolchain (without parser) took 873343.76 ms. Allocated memory was 196.1 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 175.4 MB in the beginning and 924.2 MB in the end (delta: -748.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-06-14 04:16:27,505 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 196.1 MB. Free memory is still 176.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 04:16:27,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 196.1 MB. Free memory was 175.4 MB in the beginning and 173.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-14 04:16:27,505 INFO L168 Benchmark]: Boogie Preprocessor took 18.22 ms. Allocated memory is still 196.1 MB. Free memory was 173.9 MB in the beginning and 172.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 04:16:27,505 INFO L168 Benchmark]: RCFGBuilder took 202.67 ms. Allocated memory is still 196.1 MB. Free memory was 172.7 MB in the beginning and 160.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-14 04:16:27,506 INFO L168 Benchmark]: TraceAbstraction took 873098.64 ms. Allocated memory was 196.1 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 159.6 MB in the beginning and 924.2 MB in the end (delta: -764.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-06-14 04:16:27,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 196.1 MB. Free memory is still 176.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 196.1 MB. Free memory was 175.4 MB in the beginning and 173.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.22 ms. Allocated memory is still 196.1 MB. Free memory was 173.9 MB in the beginning and 172.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 202.67 ms. Allocated memory is still 196.1 MB. Free memory was 172.7 MB in the beginning and 160.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 873098.64 ms. Allocated memory was 196.1 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 159.6 MB in the beginning and 924.2 MB in the end (delta: -764.5 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: 416, positive: 358, positive conditional: 358, positive unconditional: 0, negative: 58, negative conditional: 58, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 358, positive: 358, positive conditional: 358, 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: 358, positive: 358, positive conditional: 0, positive unconditional: 358, 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: 148, positive: 148, positive conditional: 0, positive unconditional: 148, 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: 148, positive: 148, positive conditional: 0, positive unconditional: 148, 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: 358, positive: 210, positive conditional: 0, positive unconditional: 210, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 148, unknown conditional: 0, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, 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): 148, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, 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): 148, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, 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: 58 - 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 468 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: 872998.0ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.2ms, PartialOrderReductionTime: 143.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 5.5ms SsaConstructionTime, 30.1ms SatisfiabilityAnalysisTime, 56.0ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 23/23 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