/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6-proof.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:08:49,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:08:49,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:08:49,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 21:08:49,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 21:08:49,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 21:08:49,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 21:08:49,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 21:08:49,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 21:08:49,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 21:08:49,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 21:08:49,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 21:08:49,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 21:08:49,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 21:08:49,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 21:08:49,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 21:08:49,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 21:08:49,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 21:08:49,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 21:08:49,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 21:08:49,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 21:08:49,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 21:08:49,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 21:08:49,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 21:08:49,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 21:08:49,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 21:08:49,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 21:08:49,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 21:08:49,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 21:08:49,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 21:08:49,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 21:08:49,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 21:08:49,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 21:08:49,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 21:08:49,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 21:08:49,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 21:08:49,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 21:08:49,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 21:08:49,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 21:08:49,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 21:08:49,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 21:08:49,538 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-Delay.epf [2021-02-19 21:08:49,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:08:49,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:08:49,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:08:49,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:08:49,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:08:49,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:08:49,578 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:08:49,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:08:49,578 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:08:49,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:08:49,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:08:49,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:08:49,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:08:49,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:08:49,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:08:49,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:08:49,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:08:49,582 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:08:49,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:08:49,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:08:49,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:08:49,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:08:49,889 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:08:49,890 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:08:49,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6-proof.wvr.bpl [2021-02-19 21:08:49,891 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6-proof.wvr.bpl' [2021-02-19 21:08:49,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:08:49,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:08:49,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:08:49,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:08:49,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:08:49,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:08:49,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:08:49,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:08:49,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:08:49,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/1) ... [2021-02-19 21:08:49,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:08:49,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:08:49,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:08:49,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:08:49,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (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 [2021-02-19 21:08:50,027 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:08:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:08:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:08:50,027 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:08:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:08:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:08:50,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:08:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:08:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:08:50,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 21:08:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 21:08:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 21:08:50,029 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-02-19 21:08:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-02-19 21:08:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-02-19 21:08:50,030 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:08:50,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:08:50,259 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 21:08:50,260 INFO L202 PluginConnector]: Adding new model exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:08:50 BoogieIcfgContainer [2021-02-19 21:08:50,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:08:50,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:08:50,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:08:50,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:08:50,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:49" (1/2) ... [2021-02-19 21:08:50,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a1fb7a and model type exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:08:50, skipping insertion in model container [2021-02-19 21:08:50,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:08:50" (2/2) ... [2021-02-19 21:08:50,301 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6-proof.wvr.bpl [2021-02-19 21:08:50,306 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:08:50,306 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:08:50,309 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:08:50,309 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:08:50,400 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-02-19 21:08:50,430 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 [2021-02-19 21:08:50,475 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:08:50,475 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:08:50,476 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 21:08:50,476 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:08:50,476 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:08:50,476 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:08:50,476 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:08:50,476 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 21:08:50,703 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1016346969, now seen corresponding path program 1 times [2021-02-19 21:08:50,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:50,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577077728] [2021-02-19 21:08:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:50,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577077728] [2021-02-19 21:08:50,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:08:50,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 21:08:50,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120513568] [2021-02-19 21:08:50,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 21:08:50,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:50,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 21:08:50,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 21:08:50,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:50,890 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:50,891 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) [2021-02-19 21:08:50,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:51,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 21:08:51,055 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:51,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:51,056 INFO L82 PathProgramCache]: Analyzing trace with hash 18278860, now seen corresponding path program 1 times [2021-02-19 21:08:51,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:51,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326220958] [2021-02-19 21:08:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:51,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326220958] [2021-02-19 21:08:51,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702967283] [2021-02-19 21:08:51,106 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 [2021-02-19 21:08:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:51,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 21:08:51,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:08:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:51,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:08:51,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-02-19 21:08:51,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405555477] [2021-02-19 21:08:51,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 21:08:51,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:51,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 21:08:51,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 21:08:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:51,266 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:51,267 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) [2021-02-19 21:08:51,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:51,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:51,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:08:51,594 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash -2070921332, now seen corresponding path program 1 times [2021-02-19 21:08:51,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:51,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940633557] [2021-02-19 21:08:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:51,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940633557] [2021-02-19 21:08:51,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804399632] [2021-02-19 21:08:51,813 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 [2021-02-19 21:08:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:51,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-02-19 21:08:51,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-02-19 21:18:09,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:18:09,381 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 21:18:09,384 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 21:18:09,389 INFO L202 PluginConnector]: Adding new model exp2x6-proof.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:18:09 BasicIcfg [2021-02-19 21:18:09,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:18:09,389 INFO L168 Benchmark]: Toolchain (without parser) took 559464.59 ms. Allocated memory was 255.9 MB in the beginning and 675.3 MB in the end (delta: 419.4 MB). Free memory was 236.1 MB in the beginning and 512.8 MB in the end (delta: -276.7 MB). Peak memory consumption was 687.5 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,390 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:18:09,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.51 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:18:09,390 INFO L168 Benchmark]: Boogie Preprocessor took 13.68 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.1 MB in the end (delta: 903.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,390 INFO L168 Benchmark]: RCFGBuilder took 307.65 ms. Allocated memory is still 255.9 MB. Free memory was 233.0 MB in the beginning and 235.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,390 INFO L168 Benchmark]: TraceAbstraction took 559113.45 ms. Allocated memory was 255.9 MB in the beginning and 675.3 MB in the end (delta: 419.4 MB). Free memory was 234.6 MB in the beginning and 512.8 MB in the end (delta: -278.2 MB). Peak memory consumption was 684.3 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,391 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.51 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.68 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.1 MB in the end (delta: 903.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 307.65 ms. Allocated memory is still 255.9 MB. Free memory was 233.0 MB in the beginning and 235.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 559113.45 ms. Allocated memory was 255.9 MB in the beginning and 675.3 MB in the end (delta: 419.4 MB). Free memory was 234.6 MB in the beginning and 512.8 MB in the end (delta: -278.2 MB). Peak memory consumption was 684.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 71). Cancelled while PartialOrderCegarLoop was analyzing trace of length 30 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 401 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 558.9s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 4874 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