/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 02:10:54,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 02:10:54,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 02:10:54,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 02:10:54,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 02:10:54,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 02:10:54,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 02:10:54,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 02:10:54,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 02:10:54,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 02:10:54,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 02:10:54,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 02:10:54,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 02:10:54,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 02:10:54,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 02:10:54,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 02:10:54,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 02:10:54,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 02:10:54,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 02:10:54,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 02:10:54,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-14 02:10:54,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 02:10:54,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 02:10:54,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 02:10:54,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 02:10:54,521 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 02:10:54,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 02:10:54,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 02:10:54,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 02:10:54,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 02:10:54,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 02:10:54,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 02:10:54,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 02:10:54,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 02:10:54,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 02:10:54,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 02:10:54,525 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 02:10:54,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 02:10:54,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 02:10:54,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 02:10:54,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 02:10:54,846 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 02:10:54,847 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 02:10:54,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct04.bpl [2021-07-14 02:10:54,847 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct04.bpl' [2021-07-14 02:10:54,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 02:10:54,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 02:10:54,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 02:10:54,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 02:10:54,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 02:10:54,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 02:10:54,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 02:10:54,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 02:10:54,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 02:10:54,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... [2021-07-14 02:10:54,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 02:10:54,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 02:10:54,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 02:10:54,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 02:10:54,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 02:10:54,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-14 02:10:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-14 02:10:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-14 02:10:54,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-14 02:10:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-14 02:10:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-14 02:10:54,984 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-14 02:10:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-14 02:10:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-14 02:10:54,984 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 02:10:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 02:10:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 02:10:54,985 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 02:10:55,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 02:10:55,160 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-14 02:10:55,161 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-14 02:10:55,161 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-14 02:10:55,162 INFO L202 PluginConnector]: Adding new model bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:55 BoogieIcfgContainer [2021-07-14 02:10:55,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 02:10:55,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 02:10:55,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 02:10:55,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 02:10:55,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:54" (1/2) ... [2021-07-14 02:10:55,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2167277a and model type bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:55, skipping insertion in model container [2021-07-14 02:10:55,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:55" (2/2) ... [2021-07-14 02:10:55,169 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct04.bpl [2021-07-14 02:10:55,174 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 02:10:55,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 02:10:55,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 02:10:55,175 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 02:10:55,204 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 02:10:55,223 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-14 02:10:55,239 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:10:55,239 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:10:55,240 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:10:55,240 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:10:55,240 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:10:55,240 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:10:55,240 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:10:55,240 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 02:10:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 401 states, 335 states have (on average 1.9582089552238806) internal successors, (656), 400 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:55,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:10:55,551 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-14 02:10:55,552 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-14 02:10:55,554 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:10:55,554 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:10:55,554 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:10:55,554 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:10:55,554 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:10:55,554 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:10:55,554 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:10:55,554 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-14 02:10:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 1619 states, 1611 states have (on average 4.77715704531347) internal successors, (7696), 1618 states have internal predecessors, (7696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-14 02:10:56,003 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:56,003 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:56,004 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:56,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1167775337, now seen corresponding path program 1 times [2021-07-14 02:10:56,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:56,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039847314] [2021-07-14 02:10:56,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:56,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:56,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:56,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039847314] [2021-07-14 02:10:56,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039847314] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:56,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:56,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 02:10:56,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464280648] [2021-07-14 02:10:56,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:10:56,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:56,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:10:56,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:56,123 INFO L87 Difference]: Start difference. First operand has 1619 states, 1611 states have (on average 4.77715704531347) internal successors, (7696), 1618 states have internal predecessors, (7696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:56,179 INFO L93 Difference]: Finished difference Result 1753 states and 8152 transitions. [2021-07-14 02:10:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:10:56,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-14 02:10:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:56,209 INFO L225 Difference]: With dead ends: 1753 [2021-07-14 02:10:56,209 INFO L226 Difference]: Without dead ends: 1337 [2021-07-14 02:10:56,210 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2021-07-14 02:10:56,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2021-07-14 02:10:56,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 4.640449438202247) internal successors, (6195), 1336 states have internal predecessors, (6195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 6195 transitions. [2021-07-14 02:10:56,349 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 6195 transitions. Word has length 8 [2021-07-14 02:10:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:56,349 INFO L482 AbstractCegarLoop]: Abstraction has 1337 states and 6195 transitions. [2021-07-14 02:10:56,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 6195 transitions. [2021-07-14 02:10:56,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:10:56,356 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:56,356 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:56,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 02:10:56,357 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:56,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:56,364 INFO L82 PathProgramCache]: Analyzing trace with hash -853559797, now seen corresponding path program 1 times [2021-07-14 02:10:56,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:56,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792190455] [2021-07-14 02:10:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:56,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:56,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:56,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792190455] [2021-07-14 02:10:56,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792190455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:56,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:56,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 02:10:56,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676398030] [2021-07-14 02:10:56,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:10:56,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:56,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:10:56,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:56,394 INFO L87 Difference]: Start difference. First operand 1337 states and 6195 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:56,488 INFO L93 Difference]: Finished difference Result 1337 states and 4861 transitions. [2021-07-14 02:10:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:10:56,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-14 02:10:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:56,495 INFO L225 Difference]: With dead ends: 1337 [2021-07-14 02:10:56,495 INFO L226 Difference]: Without dead ends: 670 [2021-07-14 02:10:56,495 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:56,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-07-14 02:10:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2021-07-14 02:10:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 668 states have (on average 3.441616766467066) internal successors, (2299), 669 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2299 transitions. [2021-07-14 02:10:56,520 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2299 transitions. Word has length 12 [2021-07-14 02:10:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:56,521 INFO L482 AbstractCegarLoop]: Abstraction has 670 states and 2299 transitions. [2021-07-14 02:10:56,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2299 transitions. [2021-07-14 02:10:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:10:56,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:56,522 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:56,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 02:10:56,523 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:56,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1226677657, now seen corresponding path program 2 times [2021-07-14 02:10:56,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:56,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317426702] [2021-07-14 02:10:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:56,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:56,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:56,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:56,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317426702] [2021-07-14 02:10:56,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317426702] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:56,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:56,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 02:10:56,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360843382] [2021-07-14 02:10:56,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 02:10:56,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:56,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 02:10:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:10:56,607 INFO L87 Difference]: Start difference. First operand 670 states and 2299 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:56,675 INFO L93 Difference]: Finished difference Result 1219 states and 4389 transitions. [2021-07-14 02:10:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 02:10:56,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-14 02:10:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:56,682 INFO L225 Difference]: With dead ends: 1219 [2021-07-14 02:10:56,682 INFO L226 Difference]: Without dead ends: 1171 [2021-07-14 02:10:56,683 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:10:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2021-07-14 02:10:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1083. [2021-07-14 02:10:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1081 states have (on average 3.6956521739130435) internal successors, (3995), 1082 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 3995 transitions. [2021-07-14 02:10:56,729 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 3995 transitions. Word has length 12 [2021-07-14 02:10:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:56,730 INFO L482 AbstractCegarLoop]: Abstraction has 1083 states and 3995 transitions. [2021-07-14 02:10:56,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 3995 transitions. [2021-07-14 02:10:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-14 02:10:56,732 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:56,732 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:56,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 02:10:56,733 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:56,734 INFO L82 PathProgramCache]: Analyzing trace with hash -832423655, now seen corresponding path program 1 times [2021-07-14 02:10:56,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:56,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441498008] [2021-07-14 02:10:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:56,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:56,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:56,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:56,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:56,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:56,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441498008] [2021-07-14 02:10:56,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441498008] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:56,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:56,810 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 02:10:56,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936817352] [2021-07-14 02:10:56,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 02:10:56,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:56,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 02:10:56,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:10:56,812 INFO L87 Difference]: Start difference. First operand 1083 states and 3995 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:56,896 INFO L93 Difference]: Finished difference Result 1724 states and 6436 transitions. [2021-07-14 02:10:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 02:10:56,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-07-14 02:10:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:56,906 INFO L225 Difference]: With dead ends: 1724 [2021-07-14 02:10:56,906 INFO L226 Difference]: Without dead ends: 1464 [2021-07-14 02:10:56,907 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:10:56,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2021-07-14 02:10:56,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1103. [2021-07-14 02:10:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1101 states have (on average 3.723887375113533) internal successors, (4100), 1102 states have internal predecessors, (4100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 4100 transitions. [2021-07-14 02:10:56,947 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 4100 transitions. Word has length 15 [2021-07-14 02:10:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:56,948 INFO L482 AbstractCegarLoop]: Abstraction has 1103 states and 4100 transitions. [2021-07-14 02:10:56,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 4100 transitions. [2021-07-14 02:10:56,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-14 02:10:56,952 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:56,952 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:56,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 02:10:56,952 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:56,952 INFO L82 PathProgramCache]: Analyzing trace with hash -942164409, now seen corresponding path program 1 times [2021-07-14 02:10:56,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:56,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595509649] [2021-07-14 02:10:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:57,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:57,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:57,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:57,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595509649] [2021-07-14 02:10:57,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595509649] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:57,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:57,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 02:10:57,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773418648] [2021-07-14 02:10:57,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 02:10:57,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:57,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 02:10:57,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-14 02:10:57,044 INFO L87 Difference]: Start difference. First operand 1103 states and 4100 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:57,160 INFO L93 Difference]: Finished difference Result 1552 states and 5832 transitions. [2021-07-14 02:10:57,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 02:10:57,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-07-14 02:10:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:57,170 INFO L225 Difference]: With dead ends: 1552 [2021-07-14 02:10:57,170 INFO L226 Difference]: Without dead ends: 1040 [2021-07-14 02:10:57,171 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 28.6ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-14 02:10:57,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2021-07-14 02:10:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 823. [2021-07-14 02:10:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 821 states have (on average 3.689403166869671) internal successors, (3029), 822 states have internal predecessors, (3029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 3029 transitions. [2021-07-14 02:10:57,203 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 3029 transitions. Word has length 18 [2021-07-14 02:10:57,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:57,203 INFO L482 AbstractCegarLoop]: Abstraction has 823 states and 3029 transitions. [2021-07-14 02:10:57,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,203 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 3029 transitions. [2021-07-14 02:10:57,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-07-14 02:10:57,205 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:57,205 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:57,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 02:10:57,205 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash -226490531, now seen corresponding path program 1 times [2021-07-14 02:10:57,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:57,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791475483] [2021-07-14 02:10:57,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:57,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:57,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:57,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:57,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:57,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:57,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:57,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791475483] [2021-07-14 02:10:57,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791475483] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:57,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:57,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 02:10:57,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231840354] [2021-07-14 02:10:57,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 02:10:57,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:57,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 02:10:57,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-14 02:10:57,279 INFO L87 Difference]: Start difference. First operand 823 states and 3029 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:57,369 INFO L93 Difference]: Finished difference Result 555 states and 2130 transitions. [2021-07-14 02:10:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 02:10:57,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-07-14 02:10:57,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:57,369 INFO L225 Difference]: With dead ends: 555 [2021-07-14 02:10:57,369 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 02:10:57,370 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-14 02:10:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 02:10:57,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 02:10:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 02:10:57,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-07-14 02:10:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:57,370 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 02:10:57,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 02:10:57,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:10:57,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 02:10:57,371 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-14 02:10:57,371 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 02:10:57,373 INFO L202 PluginConnector]: Adding new model bluetooth-correct04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:10:57 BasicIcfg [2021-07-14 02:10:57,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 02:10:57,374 INFO L168 Benchmark]: Toolchain (without parser) took 2504.57 ms. Allocated memory was 127.9 MB in the beginning and 241.2 MB in the end (delta: 113.2 MB). Free memory was 107.7 MB in the beginning and 133.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 88.5 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:57,374 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 108.8 MB in the beginning and 108.7 MB in the end (delta: 89.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 02:10:57,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.36 ms. Allocated memory is still 127.9 MB. Free memory was 107.4 MB in the beginning and 105.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:57,375 INFO L168 Benchmark]: Boogie Preprocessor took 13.18 ms. Allocated memory is still 127.9 MB. Free memory was 105.6 MB in the beginning and 104.8 MB in the end (delta: 882.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:57,375 INFO L168 Benchmark]: RCFGBuilder took 247.14 ms. Allocated memory is still 127.9 MB. Free memory was 104.8 MB in the beginning and 89.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:57,375 INFO L168 Benchmark]: TraceAbstraction took 2208.40 ms. Allocated memory was 127.9 MB in the beginning and 241.2 MB in the end (delta: 113.2 MB). Free memory was 89.4 MB in the beginning and 133.5 MB in the end (delta: -44.1 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:57,377 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 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 108.8 MB in the beginning and 108.7 MB in the end (delta: 89.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.36 ms. Allocated memory is still 127.9 MB. Free memory was 107.4 MB in the beginning and 105.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.18 ms. Allocated memory is still 127.9 MB. Free memory was 105.6 MB in the beginning and 104.8 MB in the end (delta: 882.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 247.14 ms. Allocated memory is still 127.9 MB. Free memory was 104.8 MB in the beginning and 89.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2208.40 ms. Allocated memory was 127.9 MB in the beginning and 241.2 MB in the end (delta: 113.2 MB). Free memory was 89.4 MB in the beginning and 133.5 MB in the end (delta: -44.1 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1452, positive: 1223, positive conditional: 1223, positive unconditional: 0, negative: 229, negative conditional: 229, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1330, positive: 1223, positive conditional: 0, positive unconditional: 1223, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1330, positive: 1103, positive conditional: 0, positive unconditional: 1103, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 132, unknown conditional: 0, unknown unconditional: 132] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 122 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19435, positive: 15531, positive conditional: 15531, positive unconditional: 0, negative: 3904, negative conditional: 3904, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17613, positive: 15531, positive conditional: 0, positive unconditional: 15531, negative: 2082, negative conditional: 0, negative unconditional: 2082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 278, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 278, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17613, positive: 15290, positive conditional: 0, positive unconditional: 15290, negative: 2045, negative conditional: 0, negative unconditional: 2045, unknown: 278, unknown conditional: 0, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 278, Positive cache size: 241, Positive conditional cache size: 0, Positive unconditional cache size: 241, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Independence queries for same thread: 1822 - PositiveResult [Line: 37]: 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 9 procedures, 50 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 313.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 16.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 293.6ms, PartialOrderReductionTime: 281.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=401occurred 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 9 procedures, 50 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1817.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 22.9ms, AutomataDifference: 596.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 440.2ms, PartialOrderReductionTime: 439.2ms, HoareTripleCheckerStatistics: 194 SDtfs, 272 SDslu, 277 SDs, 0 SdLazy, 282 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 213.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 111.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1619occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 272.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 666 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.8ms SsaConstructionTime, 59.1ms SatisfiabilityAnalysisTime, 286.5ms InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 316 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...