/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-POR-DelaySleep-NoLbe.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-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 17:59:52,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 17:59:52,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 17:59:52,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 17:59:52,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 17:59:52,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 17:59:52,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 17:59:52,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 17:59:52,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 17:59:52,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 17:59:52,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 17:59:52,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 17:59:52,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 17:59:52,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 17:59:52,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 17:59:52,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 17:59:52,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 17:59:52,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 17:59:52,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 17:59:52,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 17:59:52,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 17:59:52,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 17:59:52,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 17:59:52,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 17:59:52,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-03 17:59:52,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-03 17:59:52,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-03 17:59:52,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-03 17:59:52,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-03 17:59:52,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-03 17:59:52,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 17:59:52,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 17:59:52,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 17:59:52,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 17:59:52,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 17:59:52,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 17:59:52,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 17:59:52,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 17:59:52,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 17:59:52,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 17:59:52,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 17:59:52,539 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-DelaySleep-NoLbe.epf [2021-05-03 17:59:52,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 17:59:52,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 17:59:52,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 17:59:52,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 17:59:52,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 17:59:52,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 17:59:52,576 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 17:59:52,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 17:59:52,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 17:59:52,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 17:59:52,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 17:59:52,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 17:59:52,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 17:59:52,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 17:59:52,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 17:59:52,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 17:59:52,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 17:59:52,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 17:59:52,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 17:59:52,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 17:59:52,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 17:59:52,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 17:59:52,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 17:59:52,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 17:59:52,580 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 17:59:52,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 17:59:52,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 17:59:52,581 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-05-03 17:59:52,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 17:59:52,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 17:59:52,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 17:59:52,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 17:59:52,932 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 17:59:52,933 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 17:59:52,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-05-03 17:59:52,934 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-05-03 17:59:52,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 17:59:52,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 17:59:52,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 17:59:52,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 17:59:52,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 17:59:52,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 17:59:53,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 17:59:53,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 17:59:53,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 17:59:53,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/1) ... [2021-05-03 17:59:53,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 17:59:53,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 17:59:53,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 17:59:53,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 17:59:53,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (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 [2021-05-03 17:59:53,103 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 17:59:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 17:59:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 17:59:53,103 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 17:59:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 17:59:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 17:59:53,104 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 17:59:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 17:59:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 17:59:53,104 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 17:59:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 17:59:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 17:59:53,105 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-05-03 17:59:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-05-03 17:59:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-05-03 17:59:53,106 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 17:59:53,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 17:59:53,269 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 17:59:53,270 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:59:53 BoogieIcfgContainer [2021-05-03 17:59:53,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 17:59:53,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 17:59:53,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 17:59:53,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 17:59:53,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 05:59:52" (1/2) ... [2021-05-03 17:59:53,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a09cc42 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:59:53, skipping insertion in model container [2021-05-03 17:59:53,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:59:53" (2/2) ... [2021-05-03 17:59:53,277 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-05-03 17:59:53,281 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 17:59:53,281 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 17:59:53,284 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 17:59:53,285 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 17:59:53,322 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-03 17:59:53,344 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 [2021-05-03 17:59:53,386 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 17:59:53,386 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 17:59:53,386 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 17:59:53,386 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 17:59:53,386 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 17:59:53,386 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 17:59:53,386 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 17:59:53,386 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 17:59:53,654 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 17:59:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 17:59:53,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1771844095, now seen corresponding path program 1 times [2021-05-03 17:59:53,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 17:59:53,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039280218] [2021-05-03 17:59:53,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 17:59:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 17:59:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 17:59:53,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039280218] [2021-05-03 17:59:53,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 17:59:53,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-03 17:59:53,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000409139] [2021-05-03 17:59:53,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 17:59:53,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 17:59:53,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 17:59:53,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 17:59:53,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 17:59:53,892 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 17:59:53,894 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) [2021-05-03 17:59:53,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 17:59:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 17:59:54,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 17:59:54,009 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 17:59:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 17:59:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1143599398, now seen corresponding path program 1 times [2021-05-03 17:59:54,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 17:59:54,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879008778] [2021-05-03 17:59:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 17:59:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 17:59:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 17:59:54,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879008778] [2021-05-03 17:59:54,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991552294] [2021-05-03 17:59:54,092 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 [2021-05-03 17:59:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 17:59:54,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-03 17:59:54,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 17:59:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 17:59:54,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 17:59:54,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-05-03 17:59:54,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392955000] [2021-05-03 17:59:54,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 17:59:54,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 17:59:54,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 17:59:54,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 17:59:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 17:59:54,263 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 17:59:54,264 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) [2021-05-03 17:59:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 17:59:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 17:59:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 17:59:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 17:59:54,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 17:59:54,590 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 17:59:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 17:59:54,590 INFO L82 PathProgramCache]: Analyzing trace with hash -679917390, now seen corresponding path program 1 times [2021-05-03 17:59:54,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 17:59:54,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109013398] [2021-05-03 17:59:54,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 17:59:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 17:59:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 17:59:54,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109013398] [2021-05-03 17:59:54,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609047852] [2021-05-03 17:59:54,757 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 [2021-05-03 17:59:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 17:59:54,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-03 17:59:54,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-05-03 18:13:59,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 18:13:59,325 WARN L545 AbstractCegarLoop]: Verification canceled [2021-05-03 18:13:59,332 WARN L224 ceAbstractionStarter]: Timeout [2021-05-03 18:13:59,333 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 06:13:59 BasicIcfg [2021-05-03 18:13:59,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 18:13:59,333 INFO L168 Benchmark]: Toolchain (without parser) took 846351.51 ms. Allocated memory was 381.7 MB in the beginning and 1.2 GB in the end (delta: 788.5 MB). Free memory was 361.2 MB in the beginning and 804.5 MB in the end (delta: -443.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2021-05-03 18:13:59,333 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 381.7 MB. Free memory was 362.3 MB in the beginning and 362.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 18:13:59,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.63 ms. Allocated memory is still 381.7 MB. Free memory was 361.1 MB in the beginning and 359.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 18:13:59,334 INFO L168 Benchmark]: Boogie Preprocessor took 23.40 ms. Allocated memory is still 381.7 MB. Free memory was 359.7 MB in the beginning and 358.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 18:13:59,334 INFO L168 Benchmark]: RCFGBuilder took 235.63 ms. Allocated memory is still 381.7 MB. Free memory was 358.6 MB in the beginning and 346.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-05-03 18:13:59,334 INFO L168 Benchmark]: TraceAbstraction took 846060.69 ms. Allocated memory was 381.7 MB in the beginning and 1.2 GB in the end (delta: 788.5 MB). Free memory was 345.6 MB in the beginning and 804.5 MB in the end (delta: -458.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2021-05-03 18:13:59,335 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 0.15 ms. Allocated memory is still 381.7 MB. Free memory was 362.3 MB in the beginning and 362.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.63 ms. Allocated memory is still 381.7 MB. Free memory was 361.1 MB in the beginning and 359.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.40 ms. Allocated memory is still 381.7 MB. Free memory was 359.7 MB in the beginning and 358.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 235.63 ms. Allocated memory is still 381.7 MB. Free memory was 358.6 MB in the beginning and 346.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 846060.69 ms. Allocated memory was 381.7 MB in the beginning and 1.2 GB in the end (delta: 788.5 MB). Free memory was 345.6 MB in the beginning and 804.5 MB in the end (delta: -458.9 MB). Peak memory consumption was 1.2 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: 11401, positive: 10951, positive conditional: 10951, positive unconditional: 0, negative: 450, negative conditional: 450, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 10951, positive: 10951, positive conditional: 10951, 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: 10951, positive: 10951, positive conditional: 0, positive unconditional: 10951, 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: 300, positive: 300, positive conditional: 0, positive unconditional: 300, 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: 300, positive: 300, positive conditional: 0, positive unconditional: 300, 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: 10951, positive: 10651, positive conditional: 0, positive unconditional: 10651, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 300, unknown conditional: 0, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 300, Positive cache size: 300, Positive conditional cache size: 0, Positive unconditional cache size: 300, 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): 300, Positive cache size: 300, Positive conditional cache size: 0, Positive unconditional cache size: 300, 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): 300, Positive cache size: 300, Positive conditional cache size: 0, Positive unconditional cache size: 300, 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: 450 - 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 451 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 845972.3ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 482.2ms, 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: 27.9ms SsaConstructionTime, 65.5ms SatisfiabilityAnalysisTime, 269.3ms 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