/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-correct02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 09:25:03,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 09:25:03,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 09:25:03,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 09:25:03,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 09:25:03,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 09:25:03,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 09:25:03,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 09:25:03,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 09:25:03,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 09:25:03,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 09:25:03,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 09:25:03,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 09:25:03,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 09:25:03,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 09:25:03,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 09:25:03,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 09:25:03,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 09:25:03,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 09:25:03,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 09:25:03,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 09:25:03,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 09:25:03,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 09:25:03,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 09:25:03,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-01 09:25:03,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-01 09:25:03,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-01 09:25:03,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-01 09:25:03,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-01 09:25:03,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-01 09:25:03,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 09:25:03,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 09:25:03,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 09:25:03,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 09:25:03,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 09:25:03,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 09:25:03,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 09:25:03,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 09:25:03,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 09:25:03,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 09:25:03,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 09:25:03,226 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 09:25:03,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 09:25:03,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 09:25:03,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 09:25:03,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 09:25:03,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 09:25:03,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 09:25:03,287 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 09:25:03,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 09:25:03,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 09:25:03,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 09:25:03,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 09:25:03,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 09:25:03,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 09:25:03,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 09:25:03,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 09:25:03,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 09:25:03,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 09:25:03,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 09:25:03,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:25:03,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 09:25:03,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 09:25:03,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 09:25:03,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 09:25:03,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 09:25:03,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 09:25:03,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 09:25:03,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 09:25:03,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 09:25:03,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 09:25:03,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 09:25:03,662 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 09:25:03,663 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 09:25:03,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct02.bpl [2021-07-01 09:25:03,664 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct02.bpl' [2021-07-01 09:25:03,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 09:25:03,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 09:25:03,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 09:25:03,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 09:25:03,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 09:25:03,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 09:25:03,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 09:25:03,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 09:25:03,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 09:25:03,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/1) ... [2021-07-01 09:25:03,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 09:25:03,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 09:25:03,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 09:25:03,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 09:25:03,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (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 09:25:03,838 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 09:25:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 09:25:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 09:25:03,839 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 09:25:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 09:25:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 09:25:03,839 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 09:25:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 09:25:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 09:25:03,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 09:25:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 09:25:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 09:25:03,841 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 09:25:04,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 09:25:04,107 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 09:25:04,107 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 09:25:04,108 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 09:25:04,109 INFO L202 PluginConnector]: Adding new model bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:25:04 BoogieIcfgContainer [2021-07-01 09:25:04,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 09:25:04,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 09:25:04,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 09:25:04,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 09:25:04,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:25:03" (1/2) ... [2021-07-01 09:25:04,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f21409 and model type bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 09:25:04, skipping insertion in model container [2021-07-01 09:25:04,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:25:04" (2/2) ... [2021-07-01 09:25:04,116 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct02.bpl [2021-07-01 09:25:04,120 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 09:25:04,121 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 09:25:04,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 09:25:04,121 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 09:25:04,158 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 09:25:04,186 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-01 09:25:04,214 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:25:04,214 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:25:04,214 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:25:04,214 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:25:04,214 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:25:04,215 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:25:04,215 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:25:04,215 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 09:25:04,225 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 24 transitions, 63 flow [2021-07-01 09:25:04,281 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 221 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 40 states have internal predecessors, (71), 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 09:25:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 40 states have internal predecessors, (71), 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 09:25:04,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 09:25:04,291 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 09:25:04,293 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 09:25:04,301 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:25:04,301 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:25:04,301 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:25:04,301 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:25:04,301 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:25:04,301 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:25:04,301 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:25:04,302 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 09:25:04,304 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 24 transitions, 63 flow [2021-07-01 09:25:04,326 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 221 states, 178 states have (on average 3.168539325842697) internal successors, (564), 178 states have internal predecessors, (564), 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 09:25:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 178 states have (on average 3.168539325842697) internal successors, (564), 178 states have internal predecessors, (564), 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 09:25:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-01 09:25:04,328 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:04,329 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:04,329 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1448005722, now seen corresponding path program 1 times [2021-07-01 09:25:04,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:04,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327465622] [2021-07-01 09:25:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:04,468 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 09:25:04,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:04,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327465622] [2021-07-01 09:25:04,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327465622] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:04,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:04,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 09:25:04,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668538850] [2021-07-01 09:25:04,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:25:04,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:04,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:25:04,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:04,489 INFO L87 Difference]: Start difference. First operand has 221 states, 178 states have (on average 3.168539325842697) internal successors, (564), 178 states have internal predecessors, (564), 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) [2021-07-01 09:25:04,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:04,537 INFO L93 Difference]: Finished difference Result 193 states and 591 transitions. [2021-07-01 09:25:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:25:04,540 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 [2021-07-01 09:25:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:04,555 INFO L225 Difference]: With dead ends: 193 [2021-07-01 09:25:04,555 INFO L226 Difference]: Without dead ends: 151 [2021-07-01 09:25:04,557 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-07-01 09:25:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-07-01 09:25:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 3.026666666666667) internal successors, (454), 150 states have internal predecessors, (454), 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 09:25:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 454 transitions. [2021-07-01 09:25:04,619 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 454 transitions. Word has length 8 [2021-07-01 09:25:04,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:04,619 INFO L482 AbstractCegarLoop]: Abstraction has 151 states and 454 transitions. [2021-07-01 09:25:04,620 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) [2021-07-01 09:25:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 454 transitions. [2021-07-01 09:25:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-01 09:25:04,621 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:04,621 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:04,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 09:25:04,622 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:04,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:04,622 INFO L82 PathProgramCache]: Analyzing trace with hash -136528808, now seen corresponding path program 1 times [2021-07-01 09:25:04,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:04,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269566253] [2021-07-01 09:25:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:04,710 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 09:25:04,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:04,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269566253] [2021-07-01 09:25:04,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269566253] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:04,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:04,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 09:25:04,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523767079] [2021-07-01 09:25:04,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 09:25:04,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:04,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 09:25:04,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:25:04,714 INFO L87 Difference]: Start difference. First operand 151 states and 454 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) [2021-07-01 09:25:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:04,754 INFO L93 Difference]: Finished difference Result 227 states and 699 transitions. [2021-07-01 09:25:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 09:25:04,755 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 [2021-07-01 09:25:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:04,757 INFO L225 Difference]: With dead ends: 227 [2021-07-01 09:25:04,758 INFO L226 Difference]: Without dead ends: 227 [2021-07-01 09:25:04,758 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:25:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-07-01 09:25:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 219. [2021-07-01 09:25:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 3.114678899082569) internal successors, (679), 218 states have internal predecessors, (679), 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 09:25:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 679 transitions. [2021-07-01 09:25:04,773 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 679 transitions. Word has length 12 [2021-07-01 09:25:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:04,773 INFO L482 AbstractCegarLoop]: Abstraction has 219 states and 679 transitions. [2021-07-01 09:25:04,773 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) [2021-07-01 09:25:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 679 transitions. [2021-07-01 09:25:04,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-01 09:25:04,775 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:04,775 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:04,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 09:25:04,775 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:04,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:04,776 INFO L82 PathProgramCache]: Analyzing trace with hash 64829212, now seen corresponding path program 2 times [2021-07-01 09:25:04,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:04,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953387292] [2021-07-01 09:25:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:04,792 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 09:25:04,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:04,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953387292] [2021-07-01 09:25:04,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953387292] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:04,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:04,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:25:04,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564595096] [2021-07-01 09:25:04,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:25:04,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:04,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:25:04,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:04,794 INFO L87 Difference]: Start difference. First operand 219 states and 679 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) [2021-07-01 09:25:04,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:04,802 INFO L93 Difference]: Finished difference Result 205 states and 551 transitions. [2021-07-01 09:25:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:25:04,807 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 [2021-07-01 09:25:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:04,808 INFO L225 Difference]: With dead ends: 205 [2021-07-01 09:25:04,808 INFO L226 Difference]: Without dead ends: 93 [2021-07-01 09:25:04,809 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:25:04,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-07-01 09:25:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-07-01 09:25:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 2.388888888888889) internal successors, (215), 90 states have internal predecessors, (215), 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 09:25:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 215 transitions. [2021-07-01 09:25:04,817 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 215 transitions. Word has length 12 [2021-07-01 09:25:04,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:04,817 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 215 transitions. [2021-07-01 09:25:04,817 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) [2021-07-01 09:25:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 215 transitions. [2021-07-01 09:25:04,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-01 09:25:04,818 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 09:25:04,818 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:25:04,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 09:25:04,818 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:25:04,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:25:04,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1796647468, now seen corresponding path program 1 times [2021-07-01 09:25:04,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:25:04,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085143072] [2021-07-01 09:25:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:25:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:25:04,892 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 09:25:04,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:25:04,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085143072] [2021-07-01 09:25:04,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085143072] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:25:04,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:25:04,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 09:25:04,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254596701] [2021-07-01 09:25:04,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 09:25:04,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:25:04,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 09:25:04,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 09:25:04,894 INFO L87 Difference]: Start difference. First operand 91 states and 215 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) [2021-07-01 09:25:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 09:25:04,922 INFO L93 Difference]: Finished difference Result 61 states and 144 transitions. [2021-07-01 09:25:04,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 09:25:04,923 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 [2021-07-01 09:25:04,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 09:25:04,923 INFO L225 Difference]: With dead ends: 61 [2021-07-01 09:25:04,923 INFO L226 Difference]: Without dead ends: 0 [2021-07-01 09:25:04,923 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 09:25:04,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-01 09:25:04,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-01 09:25:04,924 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 09:25:04,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-01 09:25:04,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-07-01 09:25:04,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 09:25:04,924 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-01 09:25:04,924 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) [2021-07-01 09:25:04,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-01 09:25:04,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 09:25:04,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 09:25:04,925 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-01 09:25:04,925 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 09:25:04,928 INFO L202 PluginConnector]: Adding new model bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 09:25:04 BasicIcfg [2021-07-01 09:25:04,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 09:25:04,929 INFO L168 Benchmark]: Toolchain (without parser) took 1236.93 ms. Allocated memory is still 176.2 MB. Free memory was 155.6 MB in the beginning and 113.0 MB in the end (delta: 42.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:04,929 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 176.2 MB. Free memory is still 156.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 09:25:04,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 176.2 MB. Free memory was 155.6 MB in the beginning and 153.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:04,930 INFO L168 Benchmark]: Boogie Preprocessor took 18.06 ms. Allocated memory is still 176.2 MB. Free memory was 153.7 MB in the beginning and 152.8 MB in the end (delta: 842.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:04,931 INFO L168 Benchmark]: RCFGBuilder took 357.15 ms. Allocated memory is still 176.2 MB. Free memory was 152.6 MB in the beginning and 137.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:04,931 INFO L168 Benchmark]: TraceAbstraction took 817.12 ms. Allocated memory is still 176.2 MB. Free memory was 137.3 MB in the beginning and 113.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2021-07-01 09:25:04,934 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 0.16 ms. Allocated memory is still 176.2 MB. Free memory is still 156.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 176.2 MB. Free memory was 155.6 MB in the beginning and 153.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.06 ms. Allocated memory is still 176.2 MB. Free memory was 153.7 MB in the beginning and 152.8 MB in the end (delta: 842.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 357.15 ms. Allocated memory is still 176.2 MB. Free memory was 152.6 MB in the beginning and 137.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 817.12 ms. Allocated memory is still 176.2 MB. Free memory was 137.3 MB in the beginning and 113.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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 7 procedures, 40 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 8.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 66.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred 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 7 procedures, 40 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 624.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 5.2ms, AutomataDifference: 170.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 70 SDslu, 67 SDs, 0 SdLazy, 47 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 83.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 73.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.9ms SsaConstructionTime, 39.4ms SatisfiabilityAnalysisTime, 174.7ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...