/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 02:11:06,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 02:11:06,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 02:11:06,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 02:11:06,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 02:11:06,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 02:11:06,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 02:11:06,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 02:11:06,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 02:11:06,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 02:11:06,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 02:11:06,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-07-14 02:11:07,021 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-FA-NoLbe-Delay.epf [2021-07-14 02:11:07,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 02:11:07,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 02:11:07,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 02:11:07,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 02:11:07,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 02:11:07,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 02:11:07,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 02:11:07,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 02:11:07,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 02:11:07,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 02:11:07,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 02:11:07,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 02:11:07,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 02:11:07,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 02:11:07,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 02:11:07,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 02:11:07,076 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 02:11:07,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 02:11:07,076 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 02:11:07,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 02:11:07,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 02:11:07,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 02:11:07,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 02:11:07,348 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 02:11:07,349 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 02:11:07,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl [2021-07-14 02:11:07,350 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl' [2021-07-14 02:11:07,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 02:11:07,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 02:11:07,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 02:11:07,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 02:11:07,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 02:11:07,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 02:11:07,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 02:11:07,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 02:11:07,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 02:11:07,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... [2021-07-14 02:11:07,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 02:11:07,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 02:11:07,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 02:11:07,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 02:11:07,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 02:11:07,482 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-14 02:11:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-14 02:11:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-14 02:11:07,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-14 02:11:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-14 02:11:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-14 02:11:07,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-14 02:11:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-14 02:11:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-14 02:11:07,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 02:11:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 02:11:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 02:11:07,486 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 02:11:07,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 02:11:07,699 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-14 02:11:07,700 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-14 02:11:07,700 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-14 02:11:07,701 INFO L202 PluginConnector]: Adding new model bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:11:07 BoogieIcfgContainer [2021-07-14 02:11:07,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 02:11:07,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 02:11:07,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 02:11:07,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 02:11:07,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:11:07" (1/2) ... [2021-07-14 02:11:07,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d295b1 and model type bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:11:07, skipping insertion in model container [2021-07-14 02:11:07,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:11:07" (2/2) ... [2021-07-14 02:11:07,706 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct06.bpl [2021-07-14 02:11:07,710 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 02:11:07,710 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 02:11:07,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 02:11:07,710 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 02:11:07,742 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 02:11:07,757 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-07-14 02:11:07,769 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:11:07,769 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:11:07,769 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:11:07,769 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:11:07,769 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:11:07,769 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:11:07,769 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:11:07,770 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 02:11:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 3641 states, 3035 states have (on average 2.6098846787479406) internal successors, (7921), 3640 states have internal predecessors, (7921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:08,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:11:08,448 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-14 02:11:08,449 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-14 02:11:08,451 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:11:08,451 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:11:08,451 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:11:08,451 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:11:08,451 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:11:08,451 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:11:08,451 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:11:08,452 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-14 02:11:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 14579 states, 14571 states have (on average 6.8379658225241915) internal successors, (99636), 14578 states have internal predecessors, (99636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-14 02:11:10,436 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:10,437 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:10,437 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:10,457 INFO L82 PathProgramCache]: Analyzing trace with hash 529119306, now seen corresponding path program 1 times [2021-07-14 02:11:10,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:10,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240938841] [2021-07-14 02:11:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:10,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:10,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:10,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:10,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:10,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240938841] [2021-07-14 02:11:10,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240938841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:10,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:10,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 02:11:10,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200651691] [2021-07-14 02:11:10,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:11:10,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:10,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:11:10,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:11:10,604 INFO L87 Difference]: Start difference. First operand has 14579 states, 14571 states have (on average 6.8379658225241915) internal successors, (99636), 14578 states have internal predecessors, (99636), 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) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:10,972 INFO L93 Difference]: Finished difference Result 15793 states and 106295 transitions. [2021-07-14 02:11:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:11:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2021-07-14 02:11:10,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:11,220 INFO L225 Difference]: With dead ends: 15793 [2021-07-14 02:11:11,220 INFO L226 Difference]: Without dead ends: 12137 [2021-07-14 02:11:11,221 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:11:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12137 states. [2021-07-14 02:11:12,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12137 to 12137. [2021-07-14 02:11:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12137 states, 12135 states have (on average 6.7032550473836015) internal successors, (81344), 12136 states have internal predecessors, (81344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12137 states to 12137 states and 81344 transitions. [2021-07-14 02:11:12,191 INFO L78 Accepts]: Start accepts. Automaton has 12137 states and 81344 transitions. Word has length 8 [2021-07-14 02:11:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:12,192 INFO L482 AbstractCegarLoop]: Abstraction has 12137 states and 81344 transitions. [2021-07-14 02:11:12,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12137 states and 81344 transitions. [2021-07-14 02:11:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:11:12,193 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:12,193 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:12,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 02:11:12,193 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:12,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:12,194 INFO L82 PathProgramCache]: Analyzing trace with hash -733943480, now seen corresponding path program 1 times [2021-07-14 02:11:12,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:12,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147031165] [2021-07-14 02:11:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:12,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:12,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:12,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:12,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:12,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147031165] [2021-07-14 02:11:12,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147031165] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:12,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:12,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 02:11:12,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065507631] [2021-07-14 02:11:12,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:11:12,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:12,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:11:12,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:11:12,225 INFO L87 Difference]: Start difference. First operand 12137 states and 81344 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:12,491 INFO L93 Difference]: Finished difference Result 12137 states and 62193 transitions. [2021-07-14 02:11:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:11:12,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2021-07-14 02:11:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:12,522 INFO L225 Difference]: With dead ends: 12137 [2021-07-14 02:11:12,522 INFO L226 Difference]: Without dead ends: 6070 [2021-07-14 02:11:12,523 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:11:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6070 states. [2021-07-14 02:11:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6070 to 6070. [2021-07-14 02:11:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6070 states, 6068 states have (on average 5.011865524060646) internal successors, (30412), 6069 states have internal predecessors, (30412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6070 states to 6070 states and 30412 transitions. [2021-07-14 02:11:12,827 INFO L78 Accepts]: Start accepts. Automaton has 6070 states and 30412 transitions. Word has length 12 [2021-07-14 02:11:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:12,828 INFO L482 AbstractCegarLoop]: Abstraction has 6070 states and 30412 transitions. [2021-07-14 02:11:12,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6070 states and 30412 transitions. [2021-07-14 02:11:12,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:11:12,828 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:12,829 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:12,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 02:11:12,829 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1496623944, now seen corresponding path program 2 times [2021-07-14 02:11:12,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:12,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851349342] [2021-07-14 02:11:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:12,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:12,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:12,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:12,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:12,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:12,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:12,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:12,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851349342] [2021-07-14 02:11:12,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851349342] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:12,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:12,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 02:11:12,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94404158] [2021-07-14 02:11:12,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 02:11:12,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:12,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 02:11:12,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:11:12,883 INFO L87 Difference]: Start difference. First operand 6070 states and 30412 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:13,050 INFO L93 Difference]: Finished difference Result 11401 states and 60272 transitions. [2021-07-14 02:11:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 02:11:13,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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) Word has length 12 [2021-07-14 02:11:13,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:13,103 INFO L225 Difference]: With dead ends: 11401 [2021-07-14 02:11:13,103 INFO L226 Difference]: Without dead ends: 11209 [2021-07-14 02:11:13,103 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:11:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-07-14 02:11:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 10487. [2021-07-14 02:11:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10487 states, 10485 states have (on average 5.380448259418216) internal successors, (56414), 10486 states have internal predecessors, (56414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10487 states to 10487 states and 56414 transitions. [2021-07-14 02:11:13,589 INFO L78 Accepts]: Start accepts. Automaton has 10487 states and 56414 transitions. Word has length 12 [2021-07-14 02:11:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:13,590 INFO L482 AbstractCegarLoop]: Abstraction has 10487 states and 56414 transitions. [2021-07-14 02:11:13,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 10487 states and 56414 transitions. [2021-07-14 02:11:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-14 02:11:13,595 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:13,595 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:13,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 02:11:13,595 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash -971976774, now seen corresponding path program 1 times [2021-07-14 02:11:13,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:13,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121050047] [2021-07-14 02:11:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:13,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:13,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:13,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:13,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:13,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:13,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:13,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:13,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:13,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121050047] [2021-07-14 02:11:13,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121050047] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:13,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:13,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 02:11:13,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509620932] [2021-07-14 02:11:13,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 02:11:13,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:13,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 02:11:13,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:11:13,660 INFO L87 Difference]: Start difference. First operand 10487 states and 56414 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:14,032 INFO L93 Difference]: Finished difference Result 17994 states and 98111 transitions. [2021-07-14 02:11:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 02:11:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) Word has length 15 [2021-07-14 02:11:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:14,121 INFO L225 Difference]: With dead ends: 17994 [2021-07-14 02:11:14,121 INFO L226 Difference]: Without dead ends: 16810 [2021-07-14 02:11:14,121 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:11:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2021-07-14 02:11:14,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 12237. [2021-07-14 02:11:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12237 states, 12235 states have (on average 5.428933387821822) internal successors, (66423), 12236 states have internal predecessors, (66423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12237 states to 12237 states and 66423 transitions. [2021-07-14 02:11:14,781 INFO L78 Accepts]: Start accepts. Automaton has 12237 states and 66423 transitions. Word has length 15 [2021-07-14 02:11:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:14,782 INFO L482 AbstractCegarLoop]: Abstraction has 12237 states and 66423 transitions. [2021-07-14 02:11:14,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 12237 states and 66423 transitions. [2021-07-14 02:11:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-14 02:11:14,800 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:14,800 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:14,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 02:11:14,800 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:14,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1965293578, now seen corresponding path program 1 times [2021-07-14 02:11:14,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:14,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086462893] [2021-07-14 02:11:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:15,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:15,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:15,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:15,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:15,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:15,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086462893] [2021-07-14 02:11:15,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086462893] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:15,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:15,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 02:11:15,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192721756] [2021-07-14 02:11:15,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 02:11:15,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:15,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 02:11:15,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-14 02:11:15,099 INFO L87 Difference]: Start difference. First operand 12237 states and 66423 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:15,402 INFO L93 Difference]: Finished difference Result 20418 states and 111903 transitions. [2021-07-14 02:11:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 02:11:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) Word has length 18 [2021-07-14 02:11:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:15,675 INFO L225 Difference]: With dead ends: 20418 [2021-07-14 02:11:15,675 INFO L226 Difference]: Without dead ends: 17785 [2021-07-14 02:11:15,676 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 29.4ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-14 02:11:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17785 states. [2021-07-14 02:11:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17785 to 12407. [2021-07-14 02:11:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12407 states, 12405 states have (on average 5.444578798871423) internal successors, (67540), 12406 states have internal predecessors, (67540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12407 states to 12407 states and 67540 transitions. [2021-07-14 02:11:16,346 INFO L78 Accepts]: Start accepts. Automaton has 12407 states and 67540 transitions. Word has length 18 [2021-07-14 02:11:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:16,346 INFO L482 AbstractCegarLoop]: Abstraction has 12407 states and 67540 transitions. [2021-07-14 02:11:16,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 12407 states and 67540 transitions. [2021-07-14 02:11:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-07-14 02:11:16,377 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:16,377 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:16,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 02:11:16,378 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:16,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1154477144, now seen corresponding path program 1 times [2021-07-14 02:11:16,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:16,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443472505] [2021-07-14 02:11:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:16,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:16,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:16,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:16,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:16,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:16,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:16,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443472505] [2021-07-14 02:11:16,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443472505] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:16,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:16,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 02:11:16,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099638406] [2021-07-14 02:11:16,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 02:11:16,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:16,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 02:11:16,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-14 02:11:16,492 INFO L87 Difference]: Start difference. First operand 12407 states and 67540 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:16,945 INFO L93 Difference]: Finished difference Result 19464 states and 106819 transitions. [2021-07-14 02:11:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 02:11:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) Word has length 21 [2021-07-14 02:11:16,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:17,027 INFO L225 Difference]: With dead ends: 19464 [2021-07-14 02:11:17,027 INFO L226 Difference]: Without dead ends: 15086 [2021-07-14 02:11:17,027 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-14 02:11:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15086 states. [2021-07-14 02:11:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15086 to 10727. [2021-07-14 02:11:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 10725 states have (on average 5.393939393939394) internal successors, (57850), 10726 states have internal predecessors, (57850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 57850 transitions. [2021-07-14 02:11:17,655 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 57850 transitions. Word has length 21 [2021-07-14 02:11:17,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:17,655 INFO L482 AbstractCegarLoop]: Abstraction has 10727 states and 57850 transitions. [2021-07-14 02:11:17,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 57850 transitions. [2021-07-14 02:11:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-14 02:11:17,671 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:17,672 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:17,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 02:11:17,672 INFO L430 AbstractCegarLoop]: === Iteration 7 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:17,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1980003176, now seen corresponding path program 1 times [2021-07-14 02:11:17,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:17,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963285172] [2021-07-14 02:11:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:17,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:17,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:17,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:17,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:17,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:17,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:17,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963285172] [2021-07-14 02:11:17,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963285172] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:17,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:17,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 02:11:17,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394868902] [2021-07-14 02:11:17,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 02:11:17,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:17,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 02:11:17,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-07-14 02:11:17,783 INFO L87 Difference]: Start difference. First operand 10727 states and 57850 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 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) [2021-07-14 02:11:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:18,193 INFO L93 Difference]: Finished difference Result 15040 states and 81884 transitions. [2021-07-14 02:11:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 02:11:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 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) Word has length 24 [2021-07-14 02:11:18,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:18,232 INFO L225 Difference]: With dead ends: 15040 [2021-07-14 02:11:18,232 INFO L226 Difference]: Without dead ends: 9496 [2021-07-14 02:11:18,233 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 37.7ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-07-14 02:11:18,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9496 states. [2021-07-14 02:11:18,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9496 to 7375. [2021-07-14 02:11:18,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7373 states have (on average 5.266648582666486) internal successors, (38831), 7374 states have internal predecessors, (38831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 38831 transitions. [2021-07-14 02:11:18,499 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 38831 transitions. Word has length 24 [2021-07-14 02:11:18,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:18,499 INFO L482 AbstractCegarLoop]: Abstraction has 7375 states and 38831 transitions. [2021-07-14 02:11:18,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 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) [2021-07-14 02:11:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 38831 transitions. [2021-07-14 02:11:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-07-14 02:11:18,508 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:11:18,508 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:11:18,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 02:11:18,509 INFO L430 AbstractCegarLoop]: === Iteration 8 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:11:18,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:11:18,509 INFO L82 PathProgramCache]: Analyzing trace with hash 183856614, now seen corresponding path program 1 times [2021-07-14 02:11:18,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:11:18,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256403701] [2021-07-14 02:11:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:11:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:11:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:11:18,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:11:18,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:11:18,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:11:18,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:11:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:11:18,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:11:18,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256403701] [2021-07-14 02:11:18,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256403701] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:11:18,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:11:18,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-14 02:11:18,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223184454] [2021-07-14 02:11:18,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 02:11:18,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:11:18,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 02:11:18,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-07-14 02:11:18,738 INFO L87 Difference]: Start difference. First operand 7375 states and 38831 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:18,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:11:18,968 INFO L93 Difference]: Finished difference Result 4947 states and 27458 transitions. [2021-07-14 02:11:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 02:11:18,968 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 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) Word has length 27 [2021-07-14 02:11:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:11:18,969 INFO L225 Difference]: With dead ends: 4947 [2021-07-14 02:11:18,969 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 02:11:18,969 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-07-14 02:11:18,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 02:11:18,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 02:11:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 02:11:18,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-07-14 02:11:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:11:18,970 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 02:11:18,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:11:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 02:11:18,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:11:18,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 02:11:18,970 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-14 02:11:18,970 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 02:11:18,972 INFO L202 PluginConnector]: Adding new model bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:11:18 BasicIcfg [2021-07-14 02:11:18,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 02:11:18,973 INFO L168 Benchmark]: Toolchain (without parser) took 11603.96 ms. Allocated memory was 182.5 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 162.4 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 897.2 MB. Max. memory is 8.0 GB. [2021-07-14 02:11:18,973 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.38 ms. Allocated memory is still 182.5 MB. Free memory is still 163.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 02:11:18,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 182.5 MB. Free memory was 162.3 MB in the beginning and 160.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 02:11:18,973 INFO L168 Benchmark]: Boogie Preprocessor took 12.47 ms. Allocated memory is still 182.5 MB. Free memory was 160.5 MB in the beginning and 159.6 MB in the end (delta: 927.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 02:11:18,974 INFO L168 Benchmark]: RCFGBuilder took 277.83 ms. Allocated memory is still 182.5 MB. Free memory was 159.5 MB in the beginning and 144.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-14 02:11:18,974 INFO L168 Benchmark]: TraceAbstraction took 11269.66 ms. Allocated memory was 182.5 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 143.8 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 878.3 MB. Max. memory is 8.0 GB. [2021-07-14 02:11:18,975 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 0.38 ms. Allocated memory is still 182.5 MB. Free memory is still 163.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 182.5 MB. Free memory was 162.3 MB in the beginning and 160.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.47 ms. Allocated memory is still 182.5 MB. Free memory was 160.5 MB in the beginning and 159.6 MB in the end (delta: 927.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 277.83 ms. Allocated memory is still 182.5 MB. Free memory was 159.5 MB in the beginning and 144.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11269.66 ms. Allocated memory was 182.5 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 143.8 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 878.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 27231, positive: 22824, positive conditional: 22824, positive unconditional: 0, negative: 4407, negative conditional: 4407, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25456, positive: 22824, positive conditional: 0, positive unconditional: 22824, negative: 2632, negative conditional: 0, negative unconditional: 2632, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 316, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 316, positive: 239, positive conditional: 0, positive unconditional: 239, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25456, positive: 22549, positive conditional: 0, positive unconditional: 22549, negative: 2591, negative conditional: 0, negative unconditional: 2591, unknown: 316, unknown conditional: 0, unknown unconditional: 316] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 275, Positive conditional cache size: 0, Positive unconditional cache size: 275, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Independence queries for same thread: 1775 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 349930, positive: 277721, positive conditional: 277721, positive unconditional: 0, negative: 72209, negative conditional: 72209, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 323520, positive: 277721, positive conditional: 0, positive unconditional: 277721, negative: 45799, negative conditional: 0, negative unconditional: 45799, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 535, positive: 453, positive conditional: 0, positive unconditional: 453, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 535, positive: 395, positive conditional: 0, positive unconditional: 395, negative: 140, negative conditional: 0, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 140, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 177, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 323520, positive: 277268, positive conditional: 0, positive unconditional: 277268, negative: 45717, negative conditional: 0, negative unconditional: 45717, unknown: 535, unknown conditional: 0, unknown unconditional: 535] , Statistics on independence cache: Total cache size (in pairs): 535, Positive cache size: 453, Positive conditional cache size: 0, Positive unconditional cache size: 453, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Independence queries for same thread: 26410 - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 60 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 680.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 35.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 642.2ms, PartialOrderReductionTime: 632.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3641occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 11 procedures, 60 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10519.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 156.6ms, AutomataDifference: 3453.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1907.9ms, PartialOrderReductionTime: 1906.7ms, HoareTripleCheckerStatistics: 405 SDtfs, 537 SDslu, 635 SDs, 0 SdLazy, 782 SolverSat, 385 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 532.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 215.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14579occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3974.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 17153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.1ms SsaConstructionTime, 290.1ms SatisfiabilityAnalysisTime, 592.5ms InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...