/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:46:34,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:46:34,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:46:34,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 10:46:34,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:46:34,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:46:34,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:46:34,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:46:34,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:46:34,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:46:34,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:46:34,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:46:34,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:46:34,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:46:34,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:46:34,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:46:34,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:46:34,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-01 10:46:34,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:46:34,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:46:34,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:46:34,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:46:34,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:46:34,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:46:34,921 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:46:34,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:46:34,922 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:46:34,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:46:34,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:46:34,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:46:34,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:46:34,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:46:34,924 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:46:34,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:46:34,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:46:34,925 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 10:46:34,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:46:35,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:46:35,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:46:35,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:46:35,246 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:46:35,247 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:46:35,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl [2021-07-01 10:46:35,248 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl' [2021-07-01 10:46:35,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:46:35,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:46:35,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:46:35,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:46:35,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:46:35,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:46:35,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:46:35,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:46:35,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:46:35,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/1) ... [2021-07-01 10:46:35,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:46:35,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:46:35,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:46:35,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:46:35,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (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 10:46:35,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:46:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:46:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:46:35,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:46:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:46:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:46:35,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:46:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:46:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:46:35,404 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 10:46:35,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:46:35,620 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 10:46:35,620 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 10:46:35,622 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:46:35 BoogieIcfgContainer [2021-07-01 10:46:35,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:46:35,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:46:35,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:46:35,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:46:35,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:35" (1/2) ... [2021-07-01 10:46:35,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24169c6 and model type bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:46:35, skipping insertion in model container [2021-07-01 10:46:35,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:46:35" (2/2) ... [2021-07-01 10:46:35,627 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert05.bpl [2021-07-01 10:46:35,630 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:46:35,630 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:46:35,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:46:35,631 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:46:35,686 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:46:35,718 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:46:35,797 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:46:35,797 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:46:35,797 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:46:35,798 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:46:35,798 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:46:35,798 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:46:35,798 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:46:35,798 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 10:46:35,835 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:35,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:35,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1373907823, now seen corresponding path program 1 times [2021-07-01 10:46:35,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:35,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131573045] [2021-07-01 10:46:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,025 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 10:46:36,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:36,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131573045] [2021-07-01 10:46:36,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131573045] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:36,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:36,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 10:46:36,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094284435] [2021-07-01 10:46:36,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 10:46:36,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:36,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 10:46:36,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:46:36,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,052 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:36,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:46:36,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:46:36,159 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:36,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:36,161 INFO L82 PathProgramCache]: Analyzing trace with hash 514502592, now seen corresponding path program 1 times [2021-07-01 10:46:36,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:36,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734802686] [2021-07-01 10:46:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,205 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 10:46:36,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:36,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734802686] [2021-07-01 10:46:36,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734802686] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:36,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:36,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:46:36,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732453280] [2021-07-01 10:46:36,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:46:36,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:36,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:46:36,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:46:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,207 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:36,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2021-07-01 10:46:36,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:36,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:46:36,476 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:36,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1186184491, now seen corresponding path program 1 times [2021-07-01 10:46:36,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:36,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837392337] [2021-07-01 10:46:36,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,516 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 10:46:36,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:36,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837392337] [2021-07-01 10:46:36,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837392337] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:36,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:36,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 10:46:36,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002331283] [2021-07-01 10:46:36,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:46:36,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:36,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:46:36,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:46:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,518 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:36,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:46:36,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:36,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 10:46:36,578 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:36,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1185826441, now seen corresponding path program 2 times [2021-07-01 10:46:36,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:36,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673485712] [2021-07-01 10:46:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,621 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 10:46:36,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:36,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673485712] [2021-07-01 10:46:36,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673485712] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:36,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:36,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 10:46:36,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816661680] [2021-07-01 10:46:36,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:46:36,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:36,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:46:36,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:46:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,623 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:36,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:46:36,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:36,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:36,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 10:46:36,820 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:36,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:36,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1000852570, now seen corresponding path program 1 times [2021-07-01 10:46:36,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:36,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467934276] [2021-07-01 10:46:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 10:46:36,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:36,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467934276] [2021-07-01 10:46:36,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467934276] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:46:36,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071445569] [2021-07-01 10:46:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:46:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:36,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-01 10:46:36,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:46:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 10:46:37,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071445569] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:46:37,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:46:37,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 10:46:37,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271279450] [2021-07-01 10:46:37,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:46:37,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:37,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:46:37,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:46:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:37,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:37,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:46:37,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:37,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:37,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:46:37,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:46:37,551 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:37,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1470141413, now seen corresponding path program 1 times [2021-07-01 10:46:37,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:37,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156749585] [2021-07-01 10:46:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:46:37,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:37,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156749585] [2021-07-01 10:46:37,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156749585] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:37,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:37,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 10:46:37,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023706281] [2021-07-01 10:46:37,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:46:37,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:37,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:46:37,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:46:37,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:37,642 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:37,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 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 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:46:37,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:46:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:46:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:46:38,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 10:46:38,765 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 10:46:38,767 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:46:38,771 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:46:38,771 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:46:38,771 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:46:38,771 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:46:38,771 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:46:38,771 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:46:38,771 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:46:38,771 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:46:38,986 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 10:46:38,986 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:46:38,988 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:46:38 BasicIcfg [2021-07-01 10:46:38,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:46:38,989 INFO L168 Benchmark]: Toolchain (without parser) took 3722.25 ms. Allocated memory was 181.4 MB in the beginning and 240.1 MB in the end (delta: 58.7 MB). Free memory was 160.5 MB in the beginning and 109.4 MB in the end (delta: 51.1 MB). Peak memory consumption was 110.9 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:38,989 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory is still 161.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:46:38,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.70 ms. Allocated memory is still 181.4 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:38,989 INFO L168 Benchmark]: Boogie Preprocessor took 10.19 ms. Allocated memory is still 181.4 MB. Free memory was 158.6 MB in the beginning and 157.7 MB in the end (delta: 862.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:38,989 INFO L168 Benchmark]: RCFGBuilder took 316.40 ms. Allocated memory is still 181.4 MB. Free memory was 157.7 MB in the beginning and 144.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:38,989 INFO L168 Benchmark]: TraceAbstraction took 3365.29 ms. Allocated memory was 181.4 MB in the beginning and 240.1 MB in the end (delta: 58.7 MB). Free memory was 144.4 MB in the beginning and 109.4 MB in the end (delta: 35.0 MB). Peak memory consumption was 95.2 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:38,990 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 181.4 MB. Free memory is still 161.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.70 ms. Allocated memory is still 181.4 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.19 ms. Allocated memory is still 181.4 MB. Free memory was 158.6 MB in the beginning and 157.7 MB in the end (delta: 862.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 316.40 ms. Allocated memory is still 181.4 MB. Free memory was 157.7 MB in the beginning and 144.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3365.29 ms. Allocated memory was 181.4 MB in the beginning and 240.1 MB in the end (delta: 58.7 MB). Free memory was 144.4 MB in the beginning and 109.4 MB in the end (delta: 35.0 MB). Peak memory consumption was 95.2 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: 65745, positive: 60919, positive conditional: 60919, positive unconditional: 0, negative: 4826, negative conditional: 4826, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 62023, positive: 60919, positive conditional: 60919, positive unconditional: 0, negative: 1104, negative conditional: 1104, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 62023, positive: 53797, positive conditional: 0, positive unconditional: 53797, negative: 8226, negative conditional: 0, negative unconditional: 8226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 299, positive: 246, positive conditional: 0, positive unconditional: 246, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 299, positive: 207, positive conditional: 0, positive unconditional: 207, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 92, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62023, positive: 53551, positive conditional: 0, positive unconditional: 53551, negative: 8173, negative conditional: 0, negative unconditional: 8173, unknown: 299, unknown conditional: 0, unknown unconditional: 299] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293, SemanticConditionEliminator.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25040, positive: 7122, positive conditional: 7122, positive unconditional: 0, negative: 17918, negative conditional: 9625, negative unconditional: 8293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 337, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 211, negative conditional: 158, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 528, positive: 215, positive conditional: 121, positive unconditional: 94, negative: 313, negative conditional: 199, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25040, positive: 7035, positive conditional: 7035, positive unconditional: 0, negative: 17760, negative conditional: 9467, negative unconditional: 8293, unknown: 245, unknown conditional: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 544, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 211, Negative conditional cache size: 158, Negative unconditional cache size: 53, Eliminated conditions: 8293 ], Maximal queried relation: 6, Independence queries for same thread: 3722 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 24951, positive: 18707, positive conditional: 18707, positive unconditional: 0, negative: 6244, negative conditional: 6244, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 22059, positive: 18707, positive conditional: 18707, positive unconditional: 0, negative: 3352, negative conditional: 3352, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 22059, positive: 18707, positive conditional: 0, positive unconditional: 18707, negative: 3352, negative conditional: 0, negative unconditional: 3352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 211, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 211, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22059, positive: 18537, positive conditional: 0, positive unconditional: 18537, negative: 3311, negative conditional: 0, negative unconditional: 3311, unknown: 211, unknown conditional: 0, unknown unconditional: 211] , Statistics on independence cache: Total cache size (in pairs): 211, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41 ], Maximal queried relation: 0, Independence queries for same thread: 2892 - PositiveResult [Line: 74]: 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: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3036.6ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 2039.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.9ms SsaConstructionTime, 59.9ms SatisfiabilityAnalysisTime, 483.1ms InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 14/16 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 218.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 213.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...