/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:14:04,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:14:04,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:14:04,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 11:14:04,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 11:14:04,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 11:14:04,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 11:14:04,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 11:14:04,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 11:14:04,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 11:14:04,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 11:14:04,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 11:14:04,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:14:04,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:14:04,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:14:04,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:14:04,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:14:04,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:14:04,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:14:04,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:14:04,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:14:04,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:14:04,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:14:04,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:14:04,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:14:04,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:14:04,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:14:04,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:14:04,204 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-Lockstep.epf [2021-07-01 11:14:04,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:14:04,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:14:04,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:14:04,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:14:04,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:14:04,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:14:04,248 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:14:04,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:14:04,248 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:14:04,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:14:04,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:14:04,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:14:04,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:14:04,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:14:04,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:14:04,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:14:04,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:14:04,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:14:04,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:14:04,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:14:04,253 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:14:04,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:14:04,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:14:04,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:14:04,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:14:04,616 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:14:04,617 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:14:04,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl [2021-07-01 11:14:04,618 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl' [2021-07-01 11:14:04,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:14:04,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:14:04,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:14:04,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:14:04,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:14:04,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:14:04,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:14:04,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:14:04,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:14:04,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... [2021-07-01 11:14:04,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:14:04,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:14:04,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:14:04,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:14:04,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:14:04,767 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:14:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:14:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:14:04,767 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:14:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:14:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:14:04,768 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:14:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:14:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:14:04,770 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 11:14:05,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:14:05,005 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:14:05,006 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:14:05,007 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:05 BoogieIcfgContainer [2021-07-01 11:14:05,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:14:05,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:14:05,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:14:05,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:14:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:04" (1/2) ... [2021-07-01 11:14:05,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a364275 and model type bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:14:05, skipping insertion in model container [2021-07-01 11:14:05,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:05" (2/2) ... [2021-07-01 11:14:05,015 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert03.bpl [2021-07-01 11:14:05,020 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:14:05,020 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:14:05,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:14:05,021 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:14:05,062 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:14:05,107 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 11:14:05,200 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:14:05,201 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:14:05,201 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:14:05,201 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:14:05,201 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:14:05,201 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:14:05,201 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:14:05,201 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:14:05,292 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:05,297 INFO L82 PathProgramCache]: Analyzing trace with hash -855635097, now seen corresponding path program 1 times [2021-07-01 11:14:05,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:05,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106172523] [2021-07-01 11:14:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:05,432 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 11:14:05,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:05,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106172523] [2021-07-01 11:14:05,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106172523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:14:05,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:14:05,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:14:05,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801341936] [2021-07-01 11:14:05,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:14:05,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:05,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:14:05,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:14:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:05,450 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:05,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:14:05,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:05,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:14:05,491 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash -855634136, now seen corresponding path program 1 times [2021-07-01 11:14:05,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:05,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599616359] [2021-07-01 11:14:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:05,512 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 11:14:05,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:05,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599616359] [2021-07-01 11:14:05,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599616359] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:14:05,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:14:05,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:14:05,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933284468] [2021-07-01 11:14:05,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:14:05,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:14:05,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:14:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:05,519 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:05,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:14:05,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:05,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:05,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:14:05,744 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:05,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1285831576, now seen corresponding path program 1 times [2021-07-01 11:14:05,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:05,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103293059] [2021-07-01 11:14:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:14:05,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:05,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103293059] [2021-07-01 11:14:05,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103293059] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:05,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117465854] [2021-07-01 11:14:05,825 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 11:14:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:05,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-01 11:14:05,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:14:06,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117465854] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:06,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:06,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-01 11:14:06,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38883778] [2021-07-01 11:14:06,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 11:14:06,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:06,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 11:14:06,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-01 11:14:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,068 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:06,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 11:14:06,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:06,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:06,593 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:06,594 INFO L82 PathProgramCache]: Analyzing trace with hash -2126724498, now seen corresponding path program 1 times [2021-07-01 11:14:06,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:06,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820121391] [2021-07-01 11:14:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:14:06,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:06,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820121391] [2021-07-01 11:14:06,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820121391] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:06,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042224037] [2021-07-01 11:14:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 11:14:06,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:14:06,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042224037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:06,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:06,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:14:06,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230608917] [2021-07-01 11:14:06,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:14:06,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:06,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:14:06,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:14:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,853 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:06,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.4) 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 11:14:06,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:07,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:07,167 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:07,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:07,168 INFO L82 PathProgramCache]: Analyzing trace with hash -611875187, now seen corresponding path program 1 times [2021-07-01 11:14:07,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:07,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551907490] [2021-07-01 11:14:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:14:07,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:07,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551907490] [2021-07-01 11:14:07,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551907490] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658554955] [2021-07-01 11:14:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-01 11:14:07,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:14:07,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658554955] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:07,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-01 11:14:07,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739338747] [2021-07-01 11:14:07,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:14:07,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:07,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:14:07,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:14:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,392 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:07,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 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 11:14:07,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:08,077 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:08,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:08,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1039175416, now seen corresponding path program 1 times [2021-07-01 11:14:08,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:08,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189504934] [2021-07-01 11:14:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:14:08,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:08,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189504934] [2021-07-01 11:14:08,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189504934] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:08,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789617395] [2021-07-01 11:14:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:08,253 WARN L261 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-01 11:14:08,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:14:08,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789617395] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:08,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:08,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 11:14:08,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376533643] [2021-07-01 11:14:08,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:14:08,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:08,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:14:08,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:14:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:08,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:08,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 11:14:08,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:08,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:08,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:08,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:08,959 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:14:08,960 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-07-01 11:14:08,978 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:14:08,979 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:14:08,979 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:14:08,979 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:14:08,979 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:14:08,979 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:14:08,979 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:14:08,979 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:14:09,066 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:14:09,066 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:14:09,073 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:14:09 BasicIcfg [2021-07-01 11:14:09,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:14:09,074 INFO L168 Benchmark]: Toolchain (without parser) took 4434.37 ms. Allocated memory was 197.1 MB in the beginning and 241.2 MB in the end (delta: 44.0 MB). Free memory was 176.5 MB in the beginning and 140.6 MB in the end (delta: 36.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:09,075 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 197.1 MB. Free memory is still 177.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:14:09,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 197.1 MB. Free memory was 176.3 MB in the beginning and 174.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:09,076 INFO L168 Benchmark]: Boogie Preprocessor took 13.89 ms. Allocated memory is still 197.1 MB. Free memory was 174.7 MB in the beginning and 173.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:09,078 INFO L168 Benchmark]: RCFGBuilder took 317.78 ms. Allocated memory is still 197.1 MB. Free memory was 173.7 MB in the beginning and 161.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:09,078 INFO L168 Benchmark]: TraceAbstraction took 4064.64 ms. Allocated memory was 197.1 MB in the beginning and 241.2 MB in the end (delta: 44.0 MB). Free memory was 160.6 MB in the beginning and 140.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:09,079 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 0.15 ms. Allocated memory is still 197.1 MB. Free memory is still 177.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 197.1 MB. Free memory was 176.3 MB in the beginning and 174.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.89 ms. Allocated memory is still 197.1 MB. Free memory was 174.7 MB in the beginning and 173.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 317.78 ms. Allocated memory is still 197.1 MB. Free memory was 173.7 MB in the beginning and 161.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4064.64 ms. Allocated memory was 197.1 MB in the beginning and 241.2 MB in the end (delta: 44.0 MB). Free memory was 160.6 MB in the beginning and 140.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20866, positive: 18702, positive conditional: 18702, positive unconditional: 0, negative: 2164, negative conditional: 2164, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 19287, positive: 18702, positive conditional: 18702, positive unconditional: 0, negative: 585, negative conditional: 585, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 19287, positive: 16221, positive conditional: 0, positive unconditional: 16221, negative: 3066, negative conditional: 0, negative unconditional: 3066, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 179, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 179, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19287, positive: 16069, positive conditional: 0, positive unconditional: 16069, negative: 3039, negative conditional: 0, negative unconditional: 3039, unknown: 179, unknown conditional: 0, unknown unconditional: 179] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462, SemanticConditionEliminator.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9260, positive: 2481, positive conditional: 2481, positive unconditional: 0, negative: 6779, negative conditional: 2317, negative unconditional: 4462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 203, positive: 95, positive conditional: 74, positive unconditional: 21, negative: 108, negative conditional: 81, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 213, positive conditional: 141, positive unconditional: 71, negative: 250, negative conditional: 141, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9260, positive: 2407, positive conditional: 2407, positive unconditional: 0, negative: 6698, negative conditional: 2236, negative unconditional: 4462, unknown: 155, unknown conditional: 155, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 226, Positive conditional cache size: 74, Positive unconditional cache size: 152, Negative cache size: 108, Negative conditional cache size: 81, Negative unconditional cache size: 27, Eliminated conditions: 4462 ], Maximal queried relation: 6, Independence queries for same thread: 1579 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 944, positive: 580, positive conditional: 580, positive unconditional: 0, negative: 364, negative conditional: 364, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 771, positive: 580, positive conditional: 580, positive unconditional: 0, negative: 191, negative conditional: 191, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 771, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 771, positive: 489, positive conditional: 0, positive unconditional: 489, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 91, Positive conditional cache size: 0, Positive unconditional cache size: 91, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 ], Maximal queried relation: 0, Independence queries for same thread: 173 - PositiveResult [Line: 72]: 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 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3838.9ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 1574.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 36, 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: 26.6ms SsaConstructionTime, 113.0ms SatisfiabilityAnalysisTime, 901.3ms InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 1292 SizeOfPredicates, 4 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 26/80 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 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 104.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 85.4ms, 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...