/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-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 20:18:19,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 20:18:19,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 20:18:19,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 20:18:19,760 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-Random42.epf [2021-06-24 20:18:19,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 20:18:19,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 20:18:19,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 20:18:19,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 20:18:19,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 20:18:19,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 20:18:19,799 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 20:18:19,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 20:18:19,800 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 20:18:19,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 20:18:19,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 20:18:19,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 20:18:19,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 20:18:19,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 20:18:19,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 20:18:19,802 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 20:18:19,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 20:18:19,802 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 20:18:19,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 20:18:19,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 20:18:19,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 20:18:19,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 20:18:19,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 20:18:19,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 20:18:19,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 20:18:19,804 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 20:18:19,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 20:18:19,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 20:18:19,805 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-24 20:18:19,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 20:18:19,805 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 20:18:20,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 20:18:20,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 20:18:20,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 20:18:20,195 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 20:18:20,196 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 20:18:20,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02.bpl [2021-06-24 20:18:20,197 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02.bpl' [2021-06-24 20:18:20,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 20:18:20,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 20:18:20,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 20:18:20,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 20:18:20,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 20:18:20,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 20:18:20,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 20:18:20,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 20:18:20,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 20:18:20,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/1) ... [2021-06-24 20:18:20,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 20:18:20,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 20:18:20,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 20:18:20,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 20:18:20,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (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 [2021-06-24 20:18:20,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 20:18:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 20:18:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 20:18:20,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 20:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 20:18:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 20:18:20,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 20:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 20:18:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 20:18:20,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 20:18:20,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 20:18:20,631 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 20:18:20,632 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-06-24 20:18:20,633 INFO L202 PluginConnector]: Adding new model bluetooth02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:18:20 BoogieIcfgContainer [2021-06-24 20:18:20,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 20:18:20,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 20:18:20,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 20:18:20,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 20:18:20,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:18:20" (1/2) ... [2021-06-24 20:18:20,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d85118 and model type bluetooth02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:18:20, skipping insertion in model container [2021-06-24 20:18:20,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:18:20" (2/2) ... [2021-06-24 20:18:20,640 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth02.bpl [2021-06-24 20:18:20,661 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 20:18:20,661 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 20:18:20,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 20:18:20,662 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 20:18:20,687 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 20:18:20,707 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-06-24 20:18:20,759 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:18:20,760 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:18:20,760 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:18:20,760 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:18:20,760 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:18:20,760 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:18:20,760 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:18:20,760 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 20:18:20,944 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/3) [2021-06-24 20:18:20,946 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 20:18:20,957 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:18:20,957 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:18:20,958 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:18:20,958 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:18:20,958 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:18:20,958 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:18:20,958 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:18:20,958 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork2======== [2021-06-24 20:18:21,014 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:21,019 INFO L82 PathProgramCache]: Analyzing trace with hash 711607326, now seen corresponding path program 1 times [2021-06-24 20:18:21,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:21,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558261645] [2021-06-24 20:18:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:21,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:21,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558261645] [2021-06-24 20:18:21,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558261645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:21,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:21,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:18:21,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340046773] [2021-06-24 20:18:21,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:18:21,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:21,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:18:21,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:18:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,166 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:21,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:18:21,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 20:18:21,193 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:21,194 INFO L82 PathProgramCache]: Analyzing trace with hash -946599390, now seen corresponding path program 1 times [2021-06-24 20:18:21,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:21,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474434407] [2021-06-24 20:18:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:21,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:21,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474434407] [2021-06-24 20:18:21,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474434407] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:21,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:21,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-24 20:18:21,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221108712] [2021-06-24 20:18:21,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:18:21,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:21,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:18:21,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:18:21,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,211 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:21,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-06-24 20:18:21,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 20:18:21,233 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:21,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:21,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1827808224, now seen corresponding path program 1 times [2021-06-24 20:18:21,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:21,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262111405] [2021-06-24 20:18:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:21,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:21,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262111405] [2021-06-24 20:18:21,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262111405] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:21,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:21,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-24 20:18:21,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174212741] [2021-06-24 20:18:21,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-24 20:18:21,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:21,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-24 20:18:21,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-24 20:18:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,291 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:21,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:18:21,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:21,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 20:18:21,455 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:21,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:21,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1690408887, now seen corresponding path program 1 times [2021-06-24 20:18:21,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:21,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387677970] [2021-06-24 20:18:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 20:18:21,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:21,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387677970] [2021-06-24 20:18:21,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387677970] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:18:21,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170389691] [2021-06-24 20:18:21,606 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 [2021-06-24 20:18:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:21,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-24 20:18:21,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 20:18:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 20:18:21,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170389691] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:18:21,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 20:18:21,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-24 20:18:21,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878620541] [2021-06-24 20:18:21,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 20:18:21,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:21,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 20:18:21,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 20:18:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:21,896 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:21,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2021-06-24 20:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 20:18:22,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 20:18:22,239 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork2 was SAFE (2/3) [2021-06-24 20:18:22,240 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 20:18:22,246 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:18:22,246 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:18:22,246 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:18:22,246 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:18:22,246 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:18:22,246 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:18:22,246 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:18:22,246 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork1======== [2021-06-24 20:18:22,269 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 855452849, now seen corresponding path program 1 times [2021-06-24 20:18:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:22,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711821685] [2021-06-24 20:18:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:22,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:22,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711821685] [2021-06-24 20:18:22,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711821685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:22,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:22,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:18:22,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093484772] [2021-06-24 20:18:22,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:18:22,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:22,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:18:22,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:18:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,286 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:22,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:18:22,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-24 20:18:22,299 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1808147887, now seen corresponding path program 1 times [2021-06-24 20:18:22,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:22,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900350166] [2021-06-24 20:18:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:22,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:22,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900350166] [2021-06-24 20:18:22,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900350166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:22,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:22,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-24 20:18:22,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583109622] [2021-06-24 20:18:22,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:18:22,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:22,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:18:22,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:18:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,311 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:22,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:18:22,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-24 20:18:22,331 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:22,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2022208735, now seen corresponding path program 1 times [2021-06-24 20:18:22,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:22,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384837957] [2021-06-24 20:18:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:18:22,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:22,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384837957] [2021-06-24 20:18:22,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384837957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:22,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:22,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-24 20:18:22,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406021891] [2021-06-24 20:18:22,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-24 20:18:22,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:22,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-24 20:18:22,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-24 20:18:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,400 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:22,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:18:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:22,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-24 20:18:22,484 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:18:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:18:22,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1471005675, now seen corresponding path program 1 times [2021-06-24 20:18:22,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:18:22,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952972891] [2021-06-24 20:18:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:18:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:18:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 20:18:22,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:18:22,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952972891] [2021-06-24 20:18:22,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952972891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:18:22,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:18:22,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 20:18:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107099277] [2021-06-24 20:18:22,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 20:18:22,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:18:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 20:18:22,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 20:18:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,565 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:18:22,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 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) [2021-06-24 20:18:22,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:22,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:18:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:18:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 20:18:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 20:18:22,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-24 20:18:22,708 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork1 was SAFE (3/3) [2021-06-24 20:18:22,709 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 20:18:22,711 INFO L202 PluginConnector]: Adding new model bluetooth02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:18:22 BasicIcfg [2021-06-24 20:18:22,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 20:18:22,712 INFO L168 Benchmark]: Toolchain (without parser) took 2490.31 ms. Allocated memory is still 167.8 MB. Free memory was 147.5 MB in the beginning and 58.1 MB in the end (delta: 89.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 8.0 GB. [2021-06-24 20:18:22,712 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 167.8 MB. Free memory is still 148.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 20:18:22,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.30 ms. Allocated memory is still 167.8 MB. Free memory was 147.5 MB in the beginning and 145.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 20:18:22,713 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 167.8 MB. Free memory was 145.6 MB in the beginning and 144.7 MB in the end (delta: 874.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 20:18:22,713 INFO L168 Benchmark]: RCFGBuilder took 353.88 ms. Allocated memory is still 167.8 MB. Free memory was 144.7 MB in the beginning and 131.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 20:18:22,713 INFO L168 Benchmark]: TraceAbstraction took 2076.32 ms. Allocated memory is still 167.8 MB. Free memory was 131.4 MB in the beginning and 58.1 MB in the end (delta: 73.4 MB). Peak memory consumption was 72.7 MB. Max. memory is 8.0 GB. [2021-06-24 20:18:22,714 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 0.17 ms. Allocated memory is still 167.8 MB. Free memory is still 148.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.30 ms. Allocated memory is still 167.8 MB. Free memory was 147.5 MB in the beginning and 145.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 167.8 MB. Free memory was 145.6 MB in the beginning and 144.7 MB in the end (delta: 874.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 353.88 ms. Allocated memory is still 167.8 MB. Free memory was 144.7 MB in the beginning and 131.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2076.32 ms. Allocated memory is still 167.8 MB. Free memory was 131.4 MB in the beginning and 58.1 MB in the end (delta: 73.4 MB). Peak memory consumption was 72.7 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: 65, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 47, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 36, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 36, unknown conditional: 0, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1738, positive: 1496, positive conditional: 1496, positive unconditional: 0, negative: 242, negative conditional: 242, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1553, positive: 1496, positive conditional: 1496, positive unconditional: 0, negative: 57, negative conditional: 57, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1553, positive: 1394, positive conditional: 0, positive unconditional: 1394, negative: 159, negative conditional: 0, negative unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 141, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 141, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 58, positive conditional: 34, positive unconditional: 23, negative: 105, negative conditional: 34, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1553, positive: 1265, positive conditional: 0, positive unconditional: 1265, negative: 147, negative conditional: 0, negative unconditional: 147, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 141, Positive conditional cache size: 12, Positive unconditional cache size: 129, Negative cache size: 25, Negative conditional cache size: 13, Negative unconditional cache size: 12, SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 58, positive conditional: 34, positive unconditional: 23, negative: 105, negative conditional: 34, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 202, negative conditional: 62, negative unconditional: 140, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 141, Positive conditional cache size: 12, Positive unconditional cache size: 129, Negative cache size: 25, Negative conditional cache size: 13, Negative unconditional cache size: 12, Eliminated conditions: 140, SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 58, positive conditional: 34, positive unconditional: 23, negative: 105, negative conditional: 34, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 202, negative conditional: 62, negative unconditional: 140, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 141, Positive conditional cache size: 12, Positive unconditional cache size: 129, Negative cache size: 25, Negative conditional cache size: 13, Negative unconditional cache size: 12, Eliminated conditions: 140, SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 58, positive conditional: 34, positive unconditional: 23, negative: 105, negative conditional: 34, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 202, negative conditional: 62, negative unconditional: 140, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 141, Positive conditional cache size: 12, Positive unconditional cache size: 129, Negative cache size: 25, Negative conditional cache size: 13, Negative unconditional cache size: 12, Eliminated conditions: 140, SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 215, negative conditional: 75, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 58, positive conditional: 34, positive unconditional: 23, negative: 105, negative conditional: 34, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 202, negative conditional: 62, negative unconditional: 140, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 141, Positive conditional cache size: 12, Positive unconditional cache size: 129, Negative cache size: 25, Negative conditional cache size: 13, Negative unconditional cache size: 12, Eliminated conditions: 140 ], Maximal queried relation: 4, Independence queries for same thread: 185 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1669, positive: 1458, positive conditional: 1458, positive unconditional: 0, negative: 211, negative conditional: 211, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1505, positive: 1458, positive conditional: 1458, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1505, positive: 1374, positive conditional: 0, positive unconditional: 1374, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 26, negative conditional: 14, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 49, positive conditional: 20, positive unconditional: 29, negative: 55, negative conditional: 23, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1505, positive: 1254, positive conditional: 0, positive unconditional: 1254, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 132, unknown conditional: 0, unknown unconditional: 132] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 132, Positive conditional cache size: 12, Positive unconditional cache size: 120, Negative cache size: 26, Negative conditional cache size: 14, Negative unconditional cache size: 12, SemanticConditionEliminator.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 26, negative conditional: 14, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 49, positive conditional: 20, positive unconditional: 29, negative: 55, negative conditional: 23, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 287, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 189, negative conditional: 61, negative unconditional: 128, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 132, Positive conditional cache size: 12, Positive unconditional cache size: 120, Negative cache size: 26, Negative conditional cache size: 14, Negative unconditional cache size: 12, Eliminated conditions: 128, SemanticConditionEliminator.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 26, negative conditional: 14, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 49, positive conditional: 20, positive unconditional: 29, negative: 55, negative conditional: 23, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 287, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 189, negative conditional: 61, negative unconditional: 128, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 132, Positive conditional cache size: 12, Positive unconditional cache size: 120, Negative cache size: 26, Negative conditional cache size: 14, Negative unconditional cache size: 12, Eliminated conditions: 128, SemanticConditionEliminator.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 26, negative conditional: 14, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 49, positive conditional: 20, positive unconditional: 29, negative: 55, negative conditional: 23, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 287, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 189, negative conditional: 61, negative unconditional: 128, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 132, Positive conditional cache size: 12, Positive unconditional cache size: 120, Negative cache size: 26, Negative conditional cache size: 14, Negative unconditional cache size: 12, Eliminated conditions: 128, SemanticConditionEliminator.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 287, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 203, negative conditional: 75, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 26, negative conditional: 14, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 49, positive conditional: 20, positive unconditional: 29, negative: 55, negative conditional: 23, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 287, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 189, negative conditional: 61, negative unconditional: 128, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 132, Positive conditional cache size: 12, Positive unconditional cache size: 120, Negative cache size: 26, Negative conditional cache size: 14, Negative unconditional cache size: 12, Eliminated conditions: 128 ], Maximal queried relation: 4, Independence queries for same thread: 164 - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 6 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 218.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.5ms, PartialOrderReductionTime: 159.5ms, 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork2 with 1 thread instances CFG has 6 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1291.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 377.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 54.0ms SatisfiabilityAnalysisTime, 463.7ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 16/20 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: DeviceThreadThread1of1ForFork1 with 1 thread instances CFG has 6 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 466.6ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 274.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.7ms SsaConstructionTime, 18.6ms SatisfiabilityAnalysisTime, 127.7ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...