/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 09:25:03,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 09:25:03,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 09:25:03,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 09:25:03,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 09:25:03,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 09:25:03,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 09:25:03,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 09:25:03,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 09:25:03,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 09:25:03,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 09:25:03,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 09:25:03,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 09:25:03,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 09:25:03,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 09:25:03,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 09:25:03,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 09:25:03,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 09:25:03,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 09:25:03,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 09:25:03,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 09:25:03,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 09:25:03,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 09:25:03,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 09:25:03,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 09:25:03,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 09:25:03,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 09:25:03,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 09:25:03,720 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.epf [2021-07-01 09:25:03,749 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 09:25:03,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 09:25:03,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 09:25:03,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 09:25:03,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 09:25:03,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 09:25:03,752 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 09:25:03,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 09:25:03,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 09:25:03,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 09:25:03,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 09:25:03,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 09:25:03,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 09:25:03,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 09:25:03,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 09:25:03,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:25:03,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 09:25:03,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 09:25:03,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 09:25:03,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 09:25:04,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 09:25:04,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 09:25:04,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 09:25:04,070 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 09:25:04,071 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 09:25:04,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized06.bpl [2021-07-01 09:25:04,072 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized06.bpl' [2021-07-01 09:25:04,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 09:25:04,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 09:25:04,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 09:25:04,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 09:25:04,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 09:25:04,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 09:25:04,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 09:25:04,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 09:25:04,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 09:25:04,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/1) ... [2021-07-01 09:25:04,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 09:25:04,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 09:25:04,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 09:25:04,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 09:25:04,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (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 [2021-07-01 09:25:04,296 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 09:25:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 09:25:04,297 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 09:25:04,297 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 09:25:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 09:25:04,297 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 09:25:04,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 09:25:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 09:25:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 09:25:04,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 09:25:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 09:25:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 09:25:04,299 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 09:25:04,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 09:25:04,442 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 09:25:04,443 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 09:25:04,443 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 09:25:04,444 INFO L202 PluginConnector]: Adding new model bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:25:04 BoogieIcfgContainer [2021-07-01 09:25:04,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 09:25:04,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 09:25:04,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 09:25:04,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 09:25:04,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:04" (1/2) ... [2021-07-01 09:25:04,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726a5c1 and model type bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 09:25:04, skipping insertion in model container [2021-07-01 09:25:04,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:25:04" (2/2) ... [2021-07-01 09:25:04,449 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized06.bpl [2021-07-01 09:25:04,452 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 09:25:04,452 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 09:25:04,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 09:25:04,453 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 09:25:04,479 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 09:25:04,493 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-07-01 09:25:04,504 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:25:04,504 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:25:04,504 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:25:04,504 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:25:04,504 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:25:04,504 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:25:04,504 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:25:04,504 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 09:25:04,511 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 44 transitions, 123 flow [2021-07-01 09:25:06,078 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18221 states, 3639 states have (on average 5.6749106897499315) internal successors, (20651), 3640 states have internal predecessors, (20651), 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) [2021-07-01 09:25:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 18221 states, 3639 states have (on average 5.6749106897499315) internal successors, (20651), 3640 states have internal predecessors, (20651), 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) [2021-07-01 09:25:06,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 09:25:06,118 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 09:25:06,119 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 09:25:06,121 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:25:06,122 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:25:06,122 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:25:06,122 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:25:06,122 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:25:06,122 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:25:06,122 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:25:06,122 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 09:25:06,123 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 44 transitions, 123 flow [2021-07-01 09:25:07,632 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18221 states, 14578 states have (on average 7.134311976951571) internal successors, (104004), 14578 states have internal predecessors, (104004), 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) [2021-07-01 09:25:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 18221 states, 14578 states have (on average 7.134311976951571) internal successors, (104004), 14578 states have internal predecessors, (104004), 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) [2021-07-01 09:25:07,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-01 09:25:07,660 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:07,661 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:07,661 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:07,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1520535990, now seen corresponding path program 1 times [2021-07-01 09:25:07,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:07,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328873114] [2021-07-01 09:25:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:07,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:07,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328873114] [2021-07-01 09:25:07,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328873114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:07,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:07,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 09:25:07,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758772966] [2021-07-01 09:25:07,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-01 09:25:07,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:07,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-01 09:25:07,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 09:25:07,825 INFO L87 Difference]: Start difference. First operand has 18221 states, 14578 states have (on average 7.134311976951571) internal successors, (104004), 14578 states have internal predecessors, (104004), 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 4 states, 3 states have (on average 2.6666666666666665) 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) [2021-07-01 09:25:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:08,761 INFO L93 Difference]: Finished difference Result 33857 states and 242296 transitions. [2021-07-01 09:25:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-01 09:25:08,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2021-07-01 09:25:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:09,162 INFO L225 Difference]: With dead ends: 33857 [2021-07-01 09:25:09,162 INFO L226 Difference]: Without dead ends: 33857 [2021-07-01 09:25:09,163 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 09:25:09,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33857 states. [2021-07-01 09:25:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33857 to 33473. [2021-07-01 09:25:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33473 states, 33472 states have (on average 7.183317399617591) internal successors, (240440), 33472 states have internal predecessors, (240440), 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) [2021-07-01 09:25:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33473 states to 33473 states and 240440 transitions. [2021-07-01 09:25:11,691 INFO L78 Accepts]: Start accepts. Automaton has 33473 states and 240440 transitions. Word has length 8 [2021-07-01 09:25:11,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:11,691 INFO L482 AbstractCegarLoop]: Abstraction has 33473 states and 240440 transitions. [2021-07-01 09:25:11,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2021-07-01 09:25:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 33473 states and 240440 transitions. [2021-07-01 09:25:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-01 09:25:11,692 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:11,692 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:11,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 09:25:11,692 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:11,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:11,693 INFO L82 PathProgramCache]: Analyzing trace with hash -945618517, now seen corresponding path program 1 times [2021-07-01 09:25:11,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:11,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89665259] [2021-07-01 09:25:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:11,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:11,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:11,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89665259] [2021-07-01 09:25:11,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89665259] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:11,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:11,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:25:11,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205410230] [2021-07-01 09:25:11,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:25:11,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:11,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:25:11,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:11,708 INFO L87 Difference]: Start difference. First operand 33473 states and 240440 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-07-01 09:25:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:12,218 INFO L93 Difference]: Finished difference Result 28157 states and 161337 transitions. [2021-07-01 09:25:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:25:12,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-07-01 09:25:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:12,333 INFO L225 Difference]: With dead ends: 28157 [2021-07-01 09:25:12,333 INFO L226 Difference]: Without dead ends: 15119 [2021-07-01 09:25:12,334 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15119 states. [2021-07-01 09:25:12,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15119 to 15119. [2021-07-01 09:25:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 15118 states have (on average 5.629316047096177) internal successors, (85104), 15118 states have internal predecessors, (85104), 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) [2021-07-01 09:25:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 85104 transitions. [2021-07-01 09:25:13,038 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 85104 transitions. Word has length 10 [2021-07-01 09:25:13,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:13,038 INFO L482 AbstractCegarLoop]: Abstraction has 15119 states and 85104 transitions. [2021-07-01 09:25:13,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-07-01 09:25:13,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 85104 transitions. [2021-07-01 09:25:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-01 09:25:13,040 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:13,040 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:13,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 09:25:13,040 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:13,040 INFO L82 PathProgramCache]: Analyzing trace with hash -116890861, now seen corresponding path program 1 times [2021-07-01 09:25:13,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:13,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477453606] [2021-07-01 09:25:13,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:13,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:13,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477453606] [2021-07-01 09:25:13,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477453606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:13,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:13,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:25:13,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157345027] [2021-07-01 09:25:13,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 09:25:13,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:13,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 09:25:13,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 09:25:13,069 INFO L87 Difference]: Start difference. First operand 15119 states and 85104 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-07-01 09:25:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:13,492 INFO L93 Difference]: Finished difference Result 32540 states and 183158 transitions. [2021-07-01 09:25:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 09:25:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-07-01 09:25:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:13,618 INFO L225 Difference]: With dead ends: 32540 [2021-07-01 09:25:13,618 INFO L226 Difference]: Without dead ends: 29720 [2021-07-01 09:25:13,619 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 09:25:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29720 states. [2021-07-01 09:25:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29720 to 17841. [2021-07-01 09:25:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17841 states, 17840 states have (on average 5.653363228699551) internal successors, (100856), 17840 states have internal predecessors, (100856), 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) [2021-07-01 09:25:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17841 states to 17841 states and 100856 transitions. [2021-07-01 09:25:14,693 INFO L78 Accepts]: Start accepts. Automaton has 17841 states and 100856 transitions. Word has length 13 [2021-07-01 09:25:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:14,695 INFO L482 AbstractCegarLoop]: Abstraction has 17841 states and 100856 transitions. [2021-07-01 09:25:14,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-07-01 09:25:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17841 states and 100856 transitions. [2021-07-01 09:25:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-01 09:25:14,700 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:14,700 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:14,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 09:25:14,700 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1373530009, now seen corresponding path program 1 times [2021-07-01 09:25:14,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:14,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758365728] [2021-07-01 09:25:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:14,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:14,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758365728] [2021-07-01 09:25:14,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758365728] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:14,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:14,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 09:25:14,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538767567] [2021-07-01 09:25:14,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 09:25:14,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:14,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 09:25:14,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:25:14,743 INFO L87 Difference]: Start difference. First operand 17841 states and 100856 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-07-01 09:25:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:15,453 INFO L93 Difference]: Finished difference Result 42515 states and 240621 transitions. [2021-07-01 09:25:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 09:25:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-07-01 09:25:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:15,663 INFO L225 Difference]: With dead ends: 42515 [2021-07-01 09:25:15,663 INFO L226 Difference]: Without dead ends: 35793 [2021-07-01 09:25:15,664 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:25:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35793 states. [2021-07-01 09:25:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35793 to 18653. [2021-07-01 09:25:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18653 states, 18652 states have (on average 5.688719708342269) internal successors, (106106), 18652 states have internal predecessors, (106106), 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) [2021-07-01 09:25:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18653 states to 18653 states and 106106 transitions. [2021-07-01 09:25:16,940 INFO L78 Accepts]: Start accepts. Automaton has 18653 states and 106106 transitions. Word has length 16 [2021-07-01 09:25:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:16,941 INFO L482 AbstractCegarLoop]: Abstraction has 18653 states and 106106 transitions. [2021-07-01 09:25:16,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-07-01 09:25:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18653 states and 106106 transitions. [2021-07-01 09:25:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-07-01 09:25:16,952 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:16,952 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:16,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 09:25:16,952 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:16,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:16,953 INFO L82 PathProgramCache]: Analyzing trace with hash 51351181, now seen corresponding path program 1 times [2021-07-01 09:25:16,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:16,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527559949] [2021-07-01 09:25:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:17,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:17,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527559949] [2021-07-01 09:25:17,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527559949] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:17,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:17,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 09:25:17,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619249801] [2021-07-01 09:25:17,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 09:25:17,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:17,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 09:25:17,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-07-01 09:25:17,005 INFO L87 Difference]: Start difference. First operand 18653 states and 106106 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:25:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:17,883 INFO L93 Difference]: Finished difference Result 44154 states and 251671 transitions. [2021-07-01 09:25:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 09:25:17,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-07-01 09:25:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:18,048 INFO L225 Difference]: With dead ends: 44154 [2021-07-01 09:25:18,048 INFO L226 Difference]: Without dead ends: 33508 [2021-07-01 09:25:18,049 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.5ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-07-01 09:25:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33508 states. [2021-07-01 09:25:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33508 to 17769. [2021-07-01 09:25:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17769 states, 17768 states have (on average 5.718201260693381) internal successors, (101601), 17768 states have internal predecessors, (101601), 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) [2021-07-01 09:25:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17769 states to 17769 states and 101601 transitions. [2021-07-01 09:25:19,455 INFO L78 Accepts]: Start accepts. Automaton has 17769 states and 101601 transitions. Word has length 19 [2021-07-01 09:25:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:19,455 INFO L482 AbstractCegarLoop]: Abstraction has 17769 states and 101601 transitions. [2021-07-01 09:25:19,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:25:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 17769 states and 101601 transitions. [2021-07-01 09:25:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-07-01 09:25:19,466 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:19,466 INFO L504 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] [2021-07-01 09:25:19,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-01 09:25:19,466 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:19,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:19,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1232777547, now seen corresponding path program 1 times [2021-07-01 09:25:19,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:19,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212918250] [2021-07-01 09:25:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:19,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:19,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212918250] [2021-07-01 09:25:19,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212918250] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:19,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:19,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 09:25:19,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105168099] [2021-07-01 09:25:19,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 09:25:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 09:25:19,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-07-01 09:25:19,512 INFO L87 Difference]: Start difference. First operand 17769 states and 101601 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-07-01 09:25:20,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:20,269 INFO L93 Difference]: Finished difference Result 36849 states and 210647 transitions. [2021-07-01 09:25:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 09:25:20,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 22 [2021-07-01 09:25:20,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:20,378 INFO L225 Difference]: With dead ends: 36849 [2021-07-01 09:25:20,379 INFO L226 Difference]: Without dead ends: 23792 [2021-07-01 09:25:20,379 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-07-01 09:25:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23792 states. [2021-07-01 09:25:21,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23792 to 14961. [2021-07-01 09:25:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14961 states, 14960 states have (on average 5.738836898395722) internal successors, (85853), 14960 states have internal predecessors, (85853), 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) [2021-07-01 09:25:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14961 states to 14961 states and 85853 transitions. [2021-07-01 09:25:21,187 INFO L78 Accepts]: Start accepts. Automaton has 14961 states and 85853 transitions. Word has length 22 [2021-07-01 09:25:21,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:21,187 INFO L482 AbstractCegarLoop]: Abstraction has 14961 states and 85853 transitions. [2021-07-01 09:25:21,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-07-01 09:25:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 14961 states and 85853 transitions. [2021-07-01 09:25:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-01 09:25:21,194 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:21,195 INFO L504 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] [2021-07-01 09:25:21,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 09:25:21,195 INFO L430 AbstractCegarLoop]: === Iteration 7 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:21,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:21,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1304464181, now seen corresponding path program 1 times [2021-07-01 09:25:21,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:21,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590171291] [2021-07-01 09:25:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:25:21,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:21,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590171291] [2021-07-01 09:25:21,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590171291] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:21,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:21,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 09:25:21,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637469640] [2021-07-01 09:25:21,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 09:25:21,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:21,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 09:25:21,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-07-01 09:25:21,255 INFO L87 Difference]: Start difference. First operand 14961 states and 85853 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-07-01 09:25:21,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:21,458 INFO L93 Difference]: Finished difference Result 12045 states and 68519 transitions. [2021-07-01 09:25:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 09:25:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 25 [2021-07-01 09:25:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:21,459 INFO L225 Difference]: With dead ends: 12045 [2021-07-01 09:25:21,459 INFO L226 Difference]: Without dead ends: 0 [2021-07-01 09:25:21,459 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.0ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-07-01 09:25:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-01 09:25:21,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-01 09:25:21,459 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) [2021-07-01 09:25:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-01 09:25:21,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-07-01 09:25:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:21,460 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-01 09:25:21,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-07-01 09:25:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-01 09:25:21,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 09:25:21,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-01 09:25:21,460 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-01 09:25:21,460 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 09:25:21,462 INFO L202 PluginConnector]: Adding new model bluetooth-customized06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 09:25:21 BasicIcfg [2021-07-01 09:25:21,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 09:25:21,463 INFO L168 Benchmark]: Toolchain (without parser) took 17364.01 ms. Allocated memory was 203.4 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 182.0 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2021-07-01 09:25:21,463 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 09:25:21,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.78 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 180.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:21,464 INFO L168 Benchmark]: Boogie Preprocessor took 12.68 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 179.2 MB in the end (delta: 908.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:21,464 INFO L168 Benchmark]: RCFGBuilder took 301.36 ms. Allocated memory is still 203.4 MB. Free memory was 179.1 MB in the beginning and 165.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:21,465 INFO L168 Benchmark]: TraceAbstraction took 17016.86 ms. Allocated memory was 203.4 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 164.5 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2021-07-01 09:25:21,466 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 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.78 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 180.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.68 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 179.2 MB in the end (delta: 908.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 301.36 ms. Allocated memory is still 203.4 MB. Free memory was 179.1 MB in the beginning and 165.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17016.86 ms. Allocated memory was 203.4 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 164.5 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1615.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 39.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1573.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18221occurred 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: 15338.5ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 63.9ms, AutomataDifference: 5591.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1510.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 359 SDtfs, 428 SDslu, 549 SDs, 0 SdLazy, 826 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 433.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33473occurred in iteration=1, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7787.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 53973 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.3ms SsaConstructionTime, 46.7ms SatisfiabilityAnalysisTime, 230.2ms InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...