/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 20:39:38,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 20:39:38,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 20:39:38,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 20:39:38,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 20:39:38,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 20:39:38,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 20:39:38,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 20:39:38,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 20:39:38,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 20:39:38,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 20:39:38,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 20:39:38,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 20:39:38,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 20:39:38,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 20:39:38,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 20:39:38,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 20:39:38,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 20:39:38,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 20:39:38,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 20:39:38,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 20:39:38,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 20:39:38,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 20:39:38,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 20:39:38,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 20:39:38,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 20:39:38,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 20:39:38,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 20:39:38,650 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 20:39:38,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 20:39:38,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 20:39:38,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 20:39:38,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 20:39:38,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 20:39:38,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 20:39:38,686 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 20:39:38,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 20:39:38,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 20:39:38,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 20:39:38,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 20:39:38,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 20:39:38,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 20:39:38,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 20:39:38,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 20:39:38,688 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 20:39:38,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 20:39:38,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 20:39:38,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 20:39:38,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 20:39:38,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 20:39:38,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 20:39:38,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 20:39:38,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 20:39:38,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 20:39:38,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 20:39:38,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 20:39:38,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 20:39:38,692 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 20:39:38,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 20:39:38,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 20:39:39,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 20:39:39,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 20:39:39,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 20:39:39,065 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 20:39:39,066 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 20:39:39,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2021-07-14 20:39:39,067 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2021-07-14 20:39:39,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 20:39:39,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 20:39:39,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 20:39:39,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 20:39:39,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 20:39:39,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 20:39:39,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 20:39:39,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 20:39:39,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 20:39:39,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/1) ... [2021-07-14 20:39:39,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 20:39:39,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 20:39:39,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 20:39:39,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 20:39:39,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (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 [2021-07-14 20:39:39,234 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 20:39:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 20:39:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 20:39:39,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 20:39:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 20:39:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 20:39:39,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 20:39:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 20:39:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 20:39:39,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 20:39:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 20:39:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 20:39:39,236 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 20:39:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 20:39:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 20:39:39,237 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 20:39:39,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 20:39:39,403 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 20:39:39,405 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:39:39 BoogieIcfgContainer [2021-07-14 20:39:39,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 20:39:39,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 20:39:39,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 20:39:39,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 20:39:39,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:39:39" (1/2) ... [2021-07-14 20:39:39,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73924dc5 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 08:39:39, skipping insertion in model container [2021-07-14 20:39:39,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:39:39" (2/2) ... [2021-07-14 20:39:39,411 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x4.wvr.bpl [2021-07-14 20:39:39,416 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 20:39:39,416 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 20:39:39,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 20:39:39,417 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 20:39:39,480 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 20:39:39,512 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 [2021-07-14 20:39:39,557 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 20:39:39,557 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 20:39:39,558 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 20:39:39,558 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 20:39:39,558 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 20:39:39,558 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 20:39:39,558 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 20:39:39,558 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 20:39:39,632 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:39,639 INFO L82 PathProgramCache]: Analyzing trace with hash 576764032, now seen corresponding path program 1 times [2021-07-14 20:39:39,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:39,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070041278] [2021-07-14 20:39:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:39,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:39,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070041278] [2021-07-14 20:39:39,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070041278] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 20:39:39,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 20:39:39,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 20:39:39,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239726324] [2021-07-14 20:39:39,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 20:39:39,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:39:39,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 20:39:39,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 20:39:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:39,820 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:39:39,822 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) [2021-07-14 20:39:39,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:39,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 20:39:39,872 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:39,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:39,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1538101444, now seen corresponding path program 1 times [2021-07-14 20:39:39,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:39,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470552666] [2021-07-14 20:39:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:39,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:39,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470552666] [2021-07-14 20:39:39,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470552666] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:39,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511135427] [2021-07-14 20:39:39,956 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 [2021-07-14 20:39:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:40,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 20:39:40,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:39:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:40,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511135427] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:40,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:39:40,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 20:39:40,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504883261] [2021-07-14 20:39:40,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 20:39:40,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:39:40,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 20:39:40,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 20:39:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:40,085 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:39:40,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-07-14 20:39:40,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:40,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:40,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:40,349 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:40,350 INFO L82 PathProgramCache]: Analyzing trace with hash 673967979, now seen corresponding path program 1 times [2021-07-14 20:39:40,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:40,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208767450] [2021-07-14 20:39:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:40,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:40,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208767450] [2021-07-14 20:39:40,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208767450] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:40,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073480428] [2021-07-14 20:39:40,472 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 [2021-07-14 20:39:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:40,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:39:40,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:39:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:40,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073480428] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:40,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:39:40,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 6 [2021-07-14 20:39:40,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251824076] [2021-07-14 20:39:40,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 20:39:40,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:39:40,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 20:39:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 20:39:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:40,907 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:39:40,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-07-14 20:39:40,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:40,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:40,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:41,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:41,189 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -2019654481, now seen corresponding path program 2 times [2021-07-14 20:39:41,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:41,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914925000] [2021-07-14 20:39:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:41,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:41,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914925000] [2021-07-14 20:39:41,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914925000] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:41,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550651542] [2021-07-14 20:39:41,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:41,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:39:41,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:39:41,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 20:39:41,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:39:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:41,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550651542] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:41,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:39:41,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-14 20:39:41,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666968339] [2021-07-14 20:39:41,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 20:39:41,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:39:41,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 20:39:41,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-14 20:39:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:41,503 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:39:41,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 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) [2021-07-14 20:39:41,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:41,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:41,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:41,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:39:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:39:41,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:41,952 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:41,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:41,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1524830304, now seen corresponding path program 3 times [2021-07-14 20:39:41,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:41,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599679547] [2021-07-14 20:39:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:42,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:42,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599679547] [2021-07-14 20:39:42,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599679547] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:42,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552452849] [2021-07-14 20:39:42,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:42,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 20:39:42,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:39:42,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 20:39:42,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-07-14 20:54:01,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:54:01,757 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-14 20:54:01,764 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 20:54:01,765 WARN L196 ceAbstractionStarter]: Timeout [2021-07-14 20:54:01,765 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 08:54:01 BasicIcfg [2021-07-14 20:54:01,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 20:54:01,766 INFO L168 Benchmark]: Toolchain (without parser) took 862658.08 ms. Allocated memory was 127.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 107.3 MB in the beginning and 545.9 MB in the end (delta: -438.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-14 20:54:01,766 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 127.9 MB. Free memory was 108.5 MB in the beginning and 108.4 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 20:54:01,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 127.9 MB. Free memory was 107.2 MB in the beginning and 105.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 20:54:01,767 INFO L168 Benchmark]: Boogie Preprocessor took 18.67 ms. Allocated memory is still 127.9 MB. Free memory was 105.8 MB in the beginning and 104.8 MB in the end (delta: 941.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 20:54:01,767 INFO L168 Benchmark]: RCFGBuilder took 247.55 ms. Allocated memory is still 127.9 MB. Free memory was 104.7 MB in the beginning and 103.7 MB in the end (delta: 978.5 kB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2021-07-14 20:54:01,767 INFO L168 Benchmark]: TraceAbstraction took 862358.93 ms. Allocated memory was 127.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 103.4 MB in the beginning and 545.9 MB in the end (delta: -442.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-14 20:54:01,767 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 0.11 ms. Allocated memory is still 127.9 MB. Free memory was 108.5 MB in the beginning and 108.4 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 127.9 MB. Free memory was 107.2 MB in the beginning and 105.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.67 ms. Allocated memory is still 127.9 MB. Free memory was 105.8 MB in the beginning and 104.8 MB in the end (delta: 941.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 247.55 ms. Allocated memory is still 127.9 MB. Free memory was 104.7 MB in the beginning and 103.7 MB in the end (delta: 978.5 kB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 862358.93 ms. Allocated memory was 127.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 103.4 MB in the beginning and 545.9 MB in the end (delta: -442.5 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: 756, positive: 720, positive conditional: 142, positive unconditional: 578, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 720, positive: 720, positive conditional: 142, positive unconditional: 578, 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: 720, positive: 720, positive conditional: 0, positive unconditional: 720, 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: 464, positive: 464, positive conditional: 0, positive unconditional: 464, 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: 464, positive: 464, positive conditional: 0, positive unconditional: 464, 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: 720, positive: 256, positive conditional: 0, positive unconditional: 256, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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: 36 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 42, Number of persistent set computation: 27, Number of trivial persistent sets: 19, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 756, positive: 720, positive conditional: 142, positive unconditional: 578, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 720, positive: 720, positive conditional: 142, positive unconditional: 578, 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: 720, positive: 720, positive conditional: 0, positive unconditional: 720, 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: 464, positive: 464, positive conditional: 0, positive unconditional: 464, 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: 464, positive: 464, positive conditional: 0, positive unconditional: 464, 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: 720, positive: 256, positive conditional: 0, positive unconditional: 256, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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): 464, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, 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: 36 - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 32 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 448 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 58 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 862236.0ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.1ms, PartialOrderReductionTime: 472.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, 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: 24.6ms SsaConstructionTime, 121.7ms SatisfiabilityAnalysisTime, 928.6ms InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 1191 SizeOfPredicates, 8 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 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