/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 06:03:58,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 06:03:58,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 06:03:58,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 06:03:58,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 06:03:58,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 06:03:58,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 06:03:58,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 06:03:58,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 06:03:58,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 06:03:58,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 06:03:58,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 06:03:58,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 06:03:58,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 06:03:58,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 06:03:58,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 06:03:58,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 06:03:58,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 06:03:58,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 06:03:58,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 06:03:58,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 06:03:58,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 06:03:58,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 06:03:58,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 06:03:58,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 06:03:58,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 06:03:58,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 06:03:58,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 06:03:58,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 06:03:58,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 06:03:58,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 06:03:58,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 06:03:58,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 06:03:58,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 06:03:58,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 06:03:58,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 06:03:58,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 06:03:58,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 06:03:58,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 06:03:58,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 06:03:58,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 06:03:58,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 06:03:58,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 06:03:58,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 06:03:58,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 06:03:58,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 06:03:58,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 06:03:58,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 06:03:58,609 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 06:03:58,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 06:03:58,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 06:03:58,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 06:03:58,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 06:03:58,877 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 06:03:58,878 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 06:03:58,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2021-07-14 06:03:58,879 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2021-07-14 06:03:58,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 06:03:58,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 06:03:58,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 06:03:58,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 06:03:58,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 06:03:58,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 06:03:58,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 06:03:58,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 06:03:58,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 06:03:58,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/1) ... [2021-07-14 06:03:58,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 06:03:58,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 06:03:58,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 06:03:58,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 06:03:58,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (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 06:03:58,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 06:03:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 06:03:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 06:03:58,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 06:03:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 06:03:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 06:03:58,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 06:03:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 06:03:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 06:03:58,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 06:03:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 06:03:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 06:03:58,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 06:03:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 06:03:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 06:03:58,986 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 06:03:59,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 06:03:59,104 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-14 06:03:59,105 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:03:59 BoogieIcfgContainer [2021-07-14 06:03:59,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 06:03:59,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 06:03:59,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 06:03:59,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 06:03:59,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:03:58" (1/2) ... [2021-07-14 06:03:59,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d44a8 and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 06:03:59, skipping insertion in model container [2021-07-14 06:03:59,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:03:59" (2/2) ... [2021-07-14 06:03:59,110 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2021-07-14 06:03:59,114 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 06:03:59,114 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 06:03:59,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 06:03:59,115 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 06:03:59,169 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 06:03:59,213 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 06:03:59,261 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 06:03:59,261 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 06:03:59,261 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 06:03:59,261 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 06:03:59,261 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 06:03:59,261 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 06:03:59,261 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 06:03:59,262 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 06:03:59,510 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:03:59,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:03:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1181268151, now seen corresponding path program 1 times [2021-07-14 06:03:59,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:03:59,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964435307] [2021-07-14 06:03:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:03:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:03:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-07-14 06:03:59,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:03:59,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964435307] [2021-07-14 06:03:59,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964435307] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 06:03:59,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 06:03:59,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 06:03:59,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688326981] [2021-07-14 06:03:59,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 06:03:59,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:03:59,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 06:03:59,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 06:03:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:03:59,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:03:59,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 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 06:03:59,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:03:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:03:59,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 06:03:59,804 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:03:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:03:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1888736015, now seen corresponding path program 2 times [2021-07-14 06:03:59,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:03:59,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909436437] [2021-07-14 06:03:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:03:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:03:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-07-14 06:03:59,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:03:59,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909436437] [2021-07-14 06:03:59,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909436437] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 06:03:59,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 06:03:59,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 06:03:59,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852469556] [2021-07-14 06:03:59,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 06:03:59,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:03:59,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 06:03:59,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 06:03:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:03:59,863 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:03:59,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 06:03:59,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:03:59,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:04:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:04:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:04:00,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 06:04:00,211 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 06:04:00,212 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 06:04:00 BasicIcfg [2021-07-14 06:04:00,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 06:04:00,214 INFO L168 Benchmark]: Toolchain (without parser) took 1318.49 ms. Allocated memory is still 209.7 MB. Free memory was 190.0 MB in the beginning and 181.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 121.0 MB. Max. memory is 8.0 GB. [2021-07-14 06:04:00,216 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 209.7 MB. Free memory is still 191.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 06:04:00,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.14 ms. Allocated memory is still 209.7 MB. Free memory was 190.0 MB in the beginning and 188.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-14 06:04:00,218 INFO L168 Benchmark]: Boogie Preprocessor took 9.90 ms. Allocated memory is still 209.7 MB. Free memory was 188.6 MB in the beginning and 187.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 06:04:00,219 INFO L168 Benchmark]: RCFGBuilder took 182.28 ms. Allocated memory is still 209.7 MB. Free memory was 187.6 MB in the beginning and 176.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-07-14 06:04:00,219 INFO L168 Benchmark]: TraceAbstraction took 1105.72 ms. Allocated memory is still 209.7 MB. Free memory was 176.4 MB in the beginning and 181.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 106.3 MB. Max. memory is 8.0 GB. [2021-07-14 06:04:00,223 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 0.13 ms. Allocated memory is still 209.7 MB. Free memory is still 191.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 17.14 ms. Allocated memory is still 209.7 MB. Free memory was 190.0 MB in the beginning and 188.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.90 ms. Allocated memory is still 209.7 MB. Free memory was 188.6 MB in the beginning and 187.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 182.28 ms. Allocated memory is still 209.7 MB. Free memory was 187.6 MB in the beginning and 176.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1105.72 ms. Allocated memory is still 209.7 MB. Free memory was 176.4 MB in the beginning and 181.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 106.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 24835, positive: 21220, positive conditional: 21220, positive unconditional: 0, negative: 3615, negative conditional: 3615, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 22505, positive: 21220, positive conditional: 21220, positive unconditional: 0, negative: 1285, negative conditional: 1285, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 22505, positive: 21220, positive conditional: 0, positive unconditional: 21220, negative: 1285, negative conditional: 0, negative unconditional: 1285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 344, positive: 326, positive conditional: 0, positive unconditional: 326, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 344, positive: 296, positive conditional: 0, positive unconditional: 296, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22505, positive: 20894, positive conditional: 0, positive unconditional: 20894, negative: 1267, negative conditional: 0, negative unconditional: 1267, unknown: 344, unknown conditional: 0, unknown unconditional: 344] , Statistics on independence cache: Total cache size (in pairs): 344, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, SemanticConditionEliminator.Independence Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 344, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Eliminated conditions: 2420, SemanticConditionEliminator.Independence Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2420, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2420, negative conditional: 0, negative unconditional: 2420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 344, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Eliminated conditions: 2420 ], Maximal queried relation: 2, Independence queries for same thread: 2330 - PositiveResult [Line: 66]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 986.6ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 666.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.5ms SsaConstructionTime, 52.7ms SatisfiabilityAnalysisTime, 119.5ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 140/140 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...