/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-serverassert04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:14:05,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:14:05,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:14:05,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 11:14:05,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 11:14:05,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 11:14:05,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 11:14:05,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 11:14:05,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 11:14:05,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 11:14:05,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 11:14:05,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 11:14:05,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:14:05,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:14:05,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:14:05,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:14:05,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:14:05,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:14:05,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:14:05,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:14:05,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:14:05,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:14:05,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:14:05,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:14:05,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:14:05,277 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 11:14:05,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:14:05,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:14:05,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:14:05,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:14:05,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:14:05,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:14:05,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:14:05,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:14:05,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:14:05,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:14:05,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:14:05,301 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:14:05,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:14:05,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:14:05,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:14:05,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:14:05,534 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:14:05,534 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:14:05,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert04.bpl [2021-07-01 11:14:05,535 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert04.bpl' [2021-07-01 11:14:05,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:14:05,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:14:05,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:14:05,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:14:05,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:14:05,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:14:05,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:14:05,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:14:05,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:14:05,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/1) ... [2021-07-01 11:14:05,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:14:05,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:14:05,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:14:05,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:14:05,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (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 11:14:05,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:14:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:14:05,684 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:14:05,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:14:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:14:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:14:05,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:14:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:14:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:14:05,685 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 11:14:05,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:14:05,879 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:14:05,880 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:14:05,881 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:05 BoogieIcfgContainer [2021-07-01 11:14:05,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:14:05,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:14:05,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:14:05,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:14:05,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:14:05" (1/2) ... [2021-07-01 11:14:05,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee866b5 and model type bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:14:05, skipping insertion in model container [2021-07-01 11:14:05,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:05" (2/2) ... [2021-07-01 11:14:05,886 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert04.bpl [2021-07-01 11:14:05,889 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:14:05,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:14:05,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:14:05,890 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:14:05,940 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:14:05,971 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 11:14:06,099 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:14:06,099 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:14:06,099 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:14:06,101 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:14:06,101 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:14:06,102 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:14:06,102 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:14:06,102 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:14:06,208 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1215127415, now seen corresponding path program 1 times [2021-07-01 11:14:06,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:06,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807735992] [2021-07-01 11:14:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,344 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 11:14:06,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:06,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807735992] [2021-07-01 11:14:06,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807735992] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:14:06,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:14:06,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:14:06,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636228763] [2021-07-01 11:14:06,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:14:06,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:06,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:14:06,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:14:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:06,363 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 11:14:06,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:14:06,410 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:06,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:06,414 INFO L82 PathProgramCache]: Analyzing trace with hash 493672452, now seen corresponding path program 1 times [2021-07-01 11:14:06,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:06,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322059267] [2021-07-01 11:14:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,454 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 11:14:06,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:06,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322059267] [2021-07-01 11:14:06,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322059267] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:14:06,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:14:06,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:14:06,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621423092] [2021-07-01 11:14:06,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:14:06,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:06,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:14:06,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:14:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,457 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:06,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:14:06,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:14:06,576 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:06,576 INFO L82 PathProgramCache]: Analyzing trace with hash 205780249, now seen corresponding path program 1 times [2021-07-01 11:14:06,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:06,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338452203] [2021-07-01 11:14:06,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,628 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 11:14:06,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:06,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338452203] [2021-07-01 11:14:06,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338452203] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:06,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009568348] [2021-07-01 11:14:06,628 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 11:14:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:06,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-01 11:14:06,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:06,826 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 11:14:06,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009568348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:06,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:06,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-01 11:14:06,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660785771] [2021-07-01 11:14:06,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 11:14:06,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:06,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 11:14:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-01 11:14:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:06,831 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:06,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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 11:14:06,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:06,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:06,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:07,226 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash 695684767, now seen corresponding path program 1 times [2021-07-01 11:14:07,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:07,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755110187] [2021-07-01 11:14:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,308 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 11:14:07,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:07,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755110187] [2021-07-01 11:14:07,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755110187] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959684559] [2021-07-01 11:14:07,309 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 11:14:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 11:14:07,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:07,405 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 11:14:07,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959684559] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:07,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:14:07,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209583219] [2021-07-01 11:14:07,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:14:07,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:07,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:14:07,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:14:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,407 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:07,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 11:14:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:07,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:07,697 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:07,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:07,697 INFO L82 PathProgramCache]: Analyzing trace with hash -290995060, now seen corresponding path program 1 times [2021-07-01 11:14:07,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:07,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883855194] [2021-07-01 11:14:07,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,752 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 11:14:07,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:07,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883855194] [2021-07-01 11:14:07,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883855194] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324927040] [2021-07-01 11:14:07,752 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 11:14:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:07,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-01 11:14:07,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:07,864 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 11:14:07,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324927040] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:07,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:07,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-01 11:14:07,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080534955] [2021-07-01 11:14:07,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:14:07,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:07,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:14:07,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:14:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:07,865 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:07,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 11:14:07,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:07,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:07,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:07,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:07,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:08,362 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:08,362 INFO L82 PathProgramCache]: Analyzing trace with hash 737820437, now seen corresponding path program 1 times [2021-07-01 11:14:08,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:08,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059119561] [2021-07-01 11:14:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:08,429 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 11:14:08,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:08,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059119561] [2021-07-01 11:14:08,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059119561] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:08,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966908303] [2021-07-01 11:14:08,429 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 11:14:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:08,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-01 11:14:08,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:08,531 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 11:14:08,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966908303] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:08,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:08,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 11:14:08,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320731489] [2021-07-01 11:14:08,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:14:08,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:08,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:14:08,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:14:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:08,533 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:08,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 11:14:08,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:08,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:08,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:08,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:08,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:09,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:09,147 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:09,147 INFO L82 PathProgramCache]: Analyzing trace with hash 352733523, now seen corresponding path program 1 times [2021-07-01 11:14:09,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:09,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378981023] [2021-07-01 11:14:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 11:14:09,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:09,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378981023] [2021-07-01 11:14:09,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378981023] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:09,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778054854] [2021-07-01 11:14:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:09,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-01 11:14:09,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 11:14:09,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778054854] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:09,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:09,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-01 11:14:09,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350992383] [2021-07-01 11:14:09,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 11:14:09,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:09,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 11:14:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-07-01 11:14:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:09,299 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:09,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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 11:14:09,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:09,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:14:10,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:10,195 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:14:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:14:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -274429497, now seen corresponding path program 1 times [2021-07-01 11:14:10,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:14:10,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240946904] [2021-07-01 11:14:10,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:14:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-01 11:14:10,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:14:10,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240946904] [2021-07-01 11:14:10,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240946904] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:10,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033351971] [2021-07-01 11:14:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:14:10,296 WARN L261 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-01 11:14:10,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:14:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-01 11:14:10,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033351971] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:14:10,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:14:10,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-07-01 11:14:10,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658434151] [2021-07-01 11:14:10,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:14:10,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:14:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:14:10,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:14:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:10,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:14:10,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 11:14:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:14:10,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:14:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:14:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:14:11,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:14:11,458 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:14:11,459 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:14:11,462 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:14:11,463 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:14:11,463 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:14:11,463 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:14:11,463 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:14:11,463 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:14:11,463 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:14:11,463 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:14:11,578 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:14:11,578 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:14:11,580 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:14:11 BasicIcfg [2021-07-01 11:14:11,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:14:11,580 INFO L168 Benchmark]: Toolchain (without parser) took 6028.98 ms. Allocated memory was 240.1 MB in the beginning and 632.3 MB in the end (delta: 392.2 MB). Free memory was 219.3 MB in the beginning and 344.3 MB in the end (delta: -124.9 MB). Peak memory consumption was 268.3 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:11,580 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 240.1 MB. Free memory is still 220.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:14:11,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.11 ms. Allocated memory is still 240.1 MB. Free memory was 219.2 MB in the beginning and 217.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:11,581 INFO L168 Benchmark]: Boogie Preprocessor took 9.23 ms. Allocated memory is still 240.1 MB. Free memory was 217.5 MB in the beginning and 216.5 MB in the end (delta: 945.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:11,581 INFO L168 Benchmark]: RCFGBuilder took 296.25 ms. Allocated memory is still 240.1 MB. Free memory was 216.5 MB in the beginning and 203.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:11,581 INFO L168 Benchmark]: TraceAbstraction took 5697.95 ms. Allocated memory was 240.1 MB in the beginning and 632.3 MB in the end (delta: 392.2 MB). Free memory was 203.2 MB in the beginning and 344.3 MB in the end (delta: -141.0 MB). Peak memory consumption was 252.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:14:11,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 240.1 MB. Free memory is still 220.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.11 ms. Allocated memory is still 240.1 MB. Free memory was 219.2 MB in the beginning and 217.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.23 ms. Allocated memory is still 240.1 MB. Free memory was 217.5 MB in the beginning and 216.5 MB in the end (delta: 945.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 296.25 ms. Allocated memory is still 240.1 MB. Free memory was 216.5 MB in the beginning and 203.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5697.95 ms. Allocated memory was 240.1 MB in the beginning and 632.3 MB in the end (delta: 392.2 MB). Free memory was 203.2 MB in the beginning and 344.3 MB in the end (delta: -141.0 MB). Peak memory consumption was 252.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 218343, positive: 198489, positive conditional: 198489, positive unconditional: 0, negative: 19854, negative conditional: 19854, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 204054, positive: 198489, positive conditional: 198489, positive unconditional: 0, negative: 5565, negative conditional: 5565, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 204054, positive: 168749, positive conditional: 0, positive unconditional: 168749, negative: 35305, negative conditional: 0, negative unconditional: 35305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 289, positive: 245, positive conditional: 0, positive unconditional: 245, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 289, positive: 209, positive conditional: 0, positive unconditional: 209, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 204054, positive: 168504, positive conditional: 0, positive unconditional: 168504, negative: 35261, negative conditional: 0, negative unconditional: 35261, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219, SemanticConditionEliminator.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126504, positive: 29740, positive conditional: 29740, positive unconditional: 0, negative: 96764, negative conditional: 26545, negative unconditional: 70219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 529, positive: 289, positive conditional: 253, positive unconditional: 36, negative: 240, negative conditional: 196, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 592, positive: 311, positive conditional: 257, positive unconditional: 53, negative: 281, negative conditional: 174, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126504, positive: 29487, positive conditional: 29487, positive unconditional: 0, negative: 96568, negative conditional: 26349, negative unconditional: 70219, unknown: 449, unknown conditional: 449, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 738, Positive cache size: 498, Positive conditional cache size: 253, Positive unconditional cache size: 245, Negative cache size: 240, Negative conditional cache size: 196, Negative unconditional cache size: 44, Eliminated conditions: 70219 ], Maximal queried relation: 8, Independence queries for same thread: 14289 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9968, positive: 6669, positive conditional: 6669, positive unconditional: 0, negative: 3299, negative conditional: 3299, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 8618, positive: 6669, positive conditional: 6669, positive unconditional: 0, negative: 1949, negative conditional: 1949, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 8618, positive: 6669, positive conditional: 0, positive unconditional: 6669, negative: 1949, negative conditional: 0, negative unconditional: 1949, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 221, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 221, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8618, positive: 6496, positive conditional: 0, positive unconditional: 6496, negative: 1901, negative conditional: 0, negative unconditional: 1901, unknown: 221, unknown conditional: 0, unknown unconditional: 221] , Statistics on independence cache: Total cache size (in pairs): 221, Positive cache size: 173, Positive conditional cache size: 0, Positive unconditional cache size: 173, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48 ], Maximal queried relation: 0, Independence queries for same thread: 1350 - PositiveResult [Line: 73]: 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 8 procedures, 47 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5468.2ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 2733.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 53, 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: 35.8ms SsaConstructionTime, 107.2ms SatisfiabilityAnalysisTime, 918.2ms InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 2337 SizeOfPredicates, 6 NumberOfNonLiveVariables, 388 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 66/198 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 8 procedures, 47 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 118.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.7ms, PartialOrderReductionTime: 113.5ms, 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...