/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 16:31:48,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 16:31:48,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 16:31:48,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 16:31:48,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 16:31:48,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 16:31:48,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 16:31:48,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 16:31:48,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 16:31:48,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 16:31:48,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 16:31:48,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 16:31:48,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 16:31:48,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 16:31:48,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 16:31:48,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 16:31:48,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 16:31:48,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 16:31:48,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 16:31:48,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 16:31:48,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 16:31:48,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 16:31:48,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 16:31:48,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 16:31:48,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 16:31:48,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 16:31:48,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 16:31:48,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 16:31:48,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 16:31:48,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-12 16:31:48,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 16:31:48,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 16:31:48,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 16:31:48,995 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-Sleep-NoLbe-New_States.epf [2021-03-12 16:31:49,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 16:31:49,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 16:31:49,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 16:31:49,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 16:31:49,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 16:31:49,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 16:31:49,034 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 16:31:49,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 16:31:49,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 16:31:49,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 16:31:49,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 16:31:49,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 16:31:49,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 16:31:49,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 16:31:49,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 16:31:49,039 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 16:31:49,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 16:31:49,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 16:31:49,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 16:31:49,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 16:31:49,353 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 16:31:49,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 16:31:49,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-03-12 16:31:49,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-03-12 16:31:49,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 16:31:49,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 16:31:49,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 16:31:49,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 16:31:49,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 16:31:49,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 16:31:49,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 16:31:49,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 16:31:49,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 16:31:49,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/1) ... [2021-03-12 16:31:49,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 16:31:49,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 16:31:49,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 16:31:49,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 16:31:49,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (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 [2021-03-12 16:31:49,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 16:31:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 16:31:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 16:31:49,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 16:31:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 16:31:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 16:31:49,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 16:31:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 16:31:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 16:31:49,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 16:31:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 16:31:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 16:31:49,514 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-12 16:31:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-12 16:31:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-12 16:31:49,514 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 16:31:49,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 16:31:49,749 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 16:31:49,750 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:31:49 BoogieIcfgContainer [2021-03-12 16:31:49,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 16:31:49,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 16:31:49,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 16:31:49,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 16:31:49,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:31:49" (1/2) ... [2021-03-12 16:31:49,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c115d4 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 04:31:49, skipping insertion in model container [2021-03-12 16:31:49,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:31:49" (2/2) ... [2021-03-12 16:31:49,756 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-03-12 16:31:49,760 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 16:31:49,760 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 16:31:49,763 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 16:31:49,763 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 16:31:49,806 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-12 16:31:49,843 INFO L253 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 [2021-03-12 16:31:49,918 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 16:31:49,918 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 16:31:49,918 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 16:31:49,918 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 16:31:49,918 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 16:31:49,918 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 16:31:49,918 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 16:31:49,918 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 16:31:50,140 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:31:50,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:31:50,147 INFO L82 PathProgramCache]: Analyzing trace with hash 244483839, now seen corresponding path program 1 times [2021-03-12 16:31:50,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:31:50,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948113863] [2021-03-12 16:31:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:31:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:31:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:31:50,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948113863] [2021-03-12 16:31:50,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:31:50,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 16:31:50,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854657051] [2021-03-12 16:31:50,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 16:31:50,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:31:50,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 16:31:50,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 16:31:50,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:31:50,309 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:31:50,310 INFO L481 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) [2021-03-12 16:31:50,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:31:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 16:31:50,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 16:31:50,434 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:31:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:31:50,434 INFO L82 PathProgramCache]: Analyzing trace with hash -383760858, now seen corresponding path program 1 times [2021-03-12 16:31:50,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:31:50,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992344170] [2021-03-12 16:31:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:31:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:31:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:31:50,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992344170] [2021-03-12 16:31:50,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469497240] [2021-03-12 16:31:50,494 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 [2021-03-12 16:31:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:31:50,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-12 16:31:50,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:31:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:31:50,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:31:50,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-03-12 16:31:50,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376565202] [2021-03-12 16:31:50,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 16:31:50,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:31:50,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 16:31:50,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 16:31:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:31:50,625 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:31:50,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:31:50,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 16:31:50,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:31:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 16:31:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:31:50,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:31:50,927 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:31:50,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:31:50,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2087689650, now seen corresponding path program 1 times [2021-03-12 16:31:50,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:31:50,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879151850] [2021-03-12 16:31:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:31:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:31:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:31:51,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879151850] [2021-03-12 16:31:51,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761539644] [2021-03-12 16:31:51,136 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 [2021-03-12 16:31:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:31:51,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-12 16:31:51,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-03-12 16:45:21,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:45:21,569 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-12 16:45:21,575 WARN L224 ceAbstractionStarter]: Timeout [2021-03-12 16:45:21,576 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 04:45:21 BasicIcfg [2021-03-12 16:45:21,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 16:45:21,576 INFO L168 Benchmark]: Toolchain (without parser) took 812176.55 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 236.7 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-12 16:45:21,577 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 23.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 16:45:21,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.72 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 16:45:21,577 INFO L168 Benchmark]: Boogie Preprocessor took 20.98 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 976.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 16:45:21,577 INFO L168 Benchmark]: RCFGBuilder took 302.74 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 237.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-12 16:45:21,580 INFO L168 Benchmark]: TraceAbstraction took 811824.80 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 237.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-12 16:45:21,580 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 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 23.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.72 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.98 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 976.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 302.74 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 237.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 811824.80 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 237.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14554, positive: 13508, positive conditional: 13508, positive unconditional: 0, negative: 1046, negative conditional: 1046, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 13508, positive: 13508, positive conditional: 13508, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 13508, positive: 13508, positive conditional: 0, positive unconditional: 13508, 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: 291, positive: 291, positive conditional: 0, positive unconditional: 291, 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: 291, positive: 291, positive conditional: 0, positive unconditional: 291, 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: 13508, positive: 13217, positive conditional: 0, positive unconditional: 13217, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, 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): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, 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): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, 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: 1046 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 72). Cancelled while PartialOrderCegarLoop was analyzing trace of length 30 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 449 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 811716.8ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.0ms, PartialOrderReductionTime: 412.4ms, 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: 11.4ms SsaConstructionTime, 37.6ms SatisfiabilityAnalysisTime, 198.9ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 1 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown