/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/bluetooth-serverassert07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:27:44,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:27:44,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:27:44,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:27:44,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:27:44,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:27:44,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:27:44,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:27:44,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:27:44,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:27:44,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:27:44,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:27:44,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:27:44,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:27:44,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:27:44,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:27:44,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:27:44,820 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 [2021-07-01 11:27:44,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:27:44,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:27:44,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:27:44,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:27:44,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:27:44,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:27:44,846 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:27:44,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:27:44,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:27:44,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:27:44,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:27:44,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:27:44,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:27:44,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:27:44,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:27:44,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:27:44,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:27:44,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:27:44,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:27:44,850 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:27:44,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 11:27:44,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:27:45,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:27:45,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:27:45,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:27:45,151 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:27:45,152 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:27:45,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl [2021-07-01 11:27:45,153 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl' [2021-07-01 11:27:45,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:27:45,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:27:45,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:27:45,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:27:45,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:27:45,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:27:45,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:27:45,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:27:45,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:27:45,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/1) ... [2021-07-01 11:27:45,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:27:45,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:27:45,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:27:45,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:27:45,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (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 11:27:45,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:27:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:27:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:27:45,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:27:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:27:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:27:45,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:27:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:27:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:27:45,291 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 11:27:45,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:27:45,429 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:27:45,429 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:27:45,431 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:27:45 BoogieIcfgContainer [2021-07-01 11:27:45,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:27:45,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:27:45,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:27:45,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:27:45,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:45" (1/2) ... [2021-07-01 11:27:45,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd5d23b and model type bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:27:45, skipping insertion in model container [2021-07-01 11:27:45,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:27:45" (2/2) ... [2021-07-01 11:27:45,436 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert07.bpl [2021-07-01 11:27:45,439 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:27:45,439 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:27:45,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:27:45,440 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:27:45,470 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:27:45,485 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 11:27:45,573 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:27:45,574 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:27:45,574 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:27:45,574 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:27:45,574 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:27:45,574 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:27:45,574 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:27:45,574 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:27:45,771 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:45,775 INFO L82 PathProgramCache]: Analyzing trace with hash -770847483, now seen corresponding path program 1 times [2021-07-01 11:27:45,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:45,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453128311] [2021-07-01 11:27:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:27:45,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:45,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453128311] [2021-07-01 11:27:45,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453128311] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:27:45,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:27:45,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:27:45,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367482470] [2021-07-01 11:27:45,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:27:45,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:27:45,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:27:45,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:45,908 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:45,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:27:45,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:45,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:27:45,934 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:45,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1436441872, now seen corresponding path program 1 times [2021-07-01 11:27:45,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:45,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648476237] [2021-07-01 11:27:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:45,973 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 11:27:45,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:45,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648476237] [2021-07-01 11:27:45,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648476237] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:27:45,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:27:45,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:27:45,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96023449] [2021-07-01 11:27:45,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:27:45,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:45,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:27:45,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:27:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:45,981 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:45,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 11:27:45,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:45,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:46,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:27:46,341 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:46,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:46,341 INFO L82 PathProgramCache]: Analyzing trace with hash -802480686, now seen corresponding path program 1 times [2021-07-01 11:27:46,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:46,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451949210] [2021-07-01 11:27:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:46,400 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 11:27:46,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:46,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451949210] [2021-07-01 11:27:46,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451949210] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:27:46,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:27:46,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:27:46,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517553410] [2021-07-01 11:27:46,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:27:46,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:27:46,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:27:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:46,402 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:46,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 11:27:46,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:46,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:27:46,827 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:46,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1624687446, now seen corresponding path program 1 times [2021-07-01 11:27:46,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:46,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203107140] [2021-07-01 11:27:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:46,923 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 11:27:46,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:46,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203107140] [2021-07-01 11:27:46,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203107140] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:27:46,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:27:46,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-01 11:27:46,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260427858] [2021-07-01 11:27:46,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:27:46,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:46,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:27:46,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:27:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:46,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:46,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:27:46,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:46,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:46,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:46,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:49,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:27:49,652 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:49,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:49,653 INFO L82 PathProgramCache]: Analyzing trace with hash 789631811, now seen corresponding path program 1 times [2021-07-01 11:27:49,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:49,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514331856] [2021-07-01 11:27:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 11:27:49,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:49,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514331856] [2021-07-01 11:27:49,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514331856] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:27:49,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985499809] [2021-07-01 11:27:49,865 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 11:27:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:49,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-01 11:27:49,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:27:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 11:27:50,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985499809] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:27:50,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:27:50,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-07-01 11:27:50,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940537657] [2021-07-01 11:27:50,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:27:50,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:27:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:27:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:50,203 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:50,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 11:27:50,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:50,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:50,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:50,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:50,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:27:53,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:27:53,579 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:53,580 INFO L82 PathProgramCache]: Analyzing trace with hash -900577845, now seen corresponding path program 2 times [2021-07-01 11:27:53,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:53,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956769482] [2021-07-01 11:27:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:27:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-01 11:27:53,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:27:53,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956769482] [2021-07-01 11:27:53,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956769482] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:27:53,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373344718] [2021-07-01 11:27:53,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 11:27:53,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-01 11:27:53,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-01 11:27:53,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-01 11:27:53,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:27:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-01 11:27:53,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373344718] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:27:53,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:27:53,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-07-01 11:27:53,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721600815] [2021-07-01 11:27:53,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 11:27:53,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:27:53,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 11:27:53,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-01 11:27:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:53,846 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:27:53,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 11:27:53,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:53,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:53,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:53,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:53,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:27:53,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:27:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:27:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:27:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:27:59,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:59,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:27:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:27:59,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:27:59,933 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:27:59,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:27:59,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1780631199, now seen corresponding path program 1 times [2021-07-01 11:27:59,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:27:59,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132582750] [2021-07-01 11:27:59,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:27:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:28:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 11:28:00,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:28:00,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132582750] [2021-07-01 11:28:00,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132582750] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:28:00,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492793957] [2021-07-01 11:28:00,047 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 11:28:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:28:00,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-01 11:28:00,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:28:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 11:28:00,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492793957] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:28:00,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:28:00,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-07-01 11:28:00,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481433654] [2021-07-01 11:28:00,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:28:00,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:28:00,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:28:00,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:28:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:28:00,170 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:28:00,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:28:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:28:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:28:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:28:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:28:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:28:10,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:28:10,227 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:28:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:28:10,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1983620305, now seen corresponding path program 1 times [2021-07-01 11:28:10,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:28:10,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684102126] [2021-07-01 11:28:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:28:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:28:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:28:10,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:28:10,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684102126] [2021-07-01 11:28:10,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684102126] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:28:10,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585078711] [2021-07-01 11:28:10,331 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 11:28:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:28:10,365 WARN L261 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 55 conjunts are in the unsatisfiable core [2021-07-01 11:28:10,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:28:10,496 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:28:10,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585078711] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:28:10,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:28:10,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 16 [2021-07-01 11:28:10,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816504358] [2021-07-01 11:28:10,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-01 11:28:10,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:28:10,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-01 11:28:10,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-07-01 11:28:10,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:28:10,497 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:28:10,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.470588235294118) internal successors, (76), 16 states have internal predecessors, (76), 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 11:28:10,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:28:10,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:28:10,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:28:10,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:10,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:28:10,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:10,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:28:10,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:28:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:28:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-01 11:28:25,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:28:25,046 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:28:25,047 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:28:25,051 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:28:25,051 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:28:25,052 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:28:25,052 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:28:25,052 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:28:25,052 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:28:25,052 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:28:25,052 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:28:33,242 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:28:33,242 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:28:33,244 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:33 BasicIcfg [2021-07-01 11:28:33,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:28:33,244 INFO L168 Benchmark]: Toolchain (without parser) took 48072.67 ms. Allocated memory was 188.7 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 167.9 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. [2021-07-01 11:28:33,244 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 188.7 MB. Free memory is still 168.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:28:33,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 188.7 MB. Free memory was 167.8 MB in the beginning and 166.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:28:33,245 INFO L168 Benchmark]: Boogie Preprocessor took 13.05 ms. Allocated memory is still 188.7 MB. Free memory was 166.0 MB in the beginning and 165.0 MB in the end (delta: 941.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:28:33,245 INFO L168 Benchmark]: RCFGBuilder took 213.54 ms. Allocated memory is still 188.7 MB. Free memory was 165.0 MB in the beginning and 152.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:28:33,245 INFO L168 Benchmark]: TraceAbstraction took 47811.97 ms. Allocated memory was 188.7 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 151.6 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. [2021-07-01 11:28:33,245 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 0.13 ms. Allocated memory is still 188.7 MB. Free memory is still 168.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 188.7 MB. Free memory was 167.8 MB in the beginning and 166.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.05 ms. Allocated memory is still 188.7 MB. Free memory was 166.0 MB in the beginning and 165.0 MB in the end (delta: 941.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 213.54 ms. Allocated memory is still 188.7 MB. Free memory was 165.0 MB in the beginning and 152.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 47811.97 ms. Allocated memory was 188.7 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 151.6 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9111433, positive: 8555098, positive conditional: 8555098, positive unconditional: 0, negative: 556335, negative conditional: 556335, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 8663880, positive: 8555098, positive conditional: 8555098, positive unconditional: 0, negative: 108782, negative conditional: 108782, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 8663880, positive: 7441760, positive conditional: 0, positive unconditional: 7441760, negative: 1222120, negative conditional: 0, negative unconditional: 1222120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 747, positive: 630, positive conditional: 0, positive unconditional: 630, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 747, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 215, negative conditional: 0, negative unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 215, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8663880, positive: 7441130, positive conditional: 0, positive unconditional: 7441130, negative: 1222003, negative conditional: 0, negative unconditional: 1222003, unknown: 747, unknown conditional: 0, unknown unconditional: 747] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028, SemanticConditionEliminator.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2999609, positive: 1113338, positive conditional: 1113338, positive unconditional: 0, negative: 1886271, negative conditional: 620243, negative unconditional: 1266028, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1153, positive: 545, positive conditional: 447, positive unconditional: 98, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1452, positive: 635, positive conditional: 468, positive unconditional: 167, negative: 817, negative conditional: 615, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2999609, positive: 1112891, positive conditional: 1112891, positive unconditional: 0, negative: 1885780, negative conditional: 619752, negative unconditional: 1266028, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1685, Positive cache size: 1077, Positive conditional cache size: 447, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 1266028 ], Maximal queried relation: 8, Independence queries for same thread: 447553 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5064517, positive: 3604358, positive conditional: 3604358, positive unconditional: 0, negative: 1460159, negative conditional: 1460159, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4628107, positive: 3604358, positive conditional: 3604358, positive unconditional: 0, negative: 1023749, negative conditional: 1023749, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4628107, positive: 3604358, positive conditional: 0, positive unconditional: 3604358, negative: 1023749, negative conditional: 0, negative unconditional: 1023749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 666, positive: 535, positive conditional: 0, positive unconditional: 535, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 666, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 214, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 214, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4628107, positive: 3603823, positive conditional: 0, positive unconditional: 3603823, negative: 1023618, negative conditional: 0, negative unconditional: 1023618, unknown: 666, unknown conditional: 0, unknown unconditional: 666] , Statistics on independence cache: Total cache size (in pairs): 666, Positive cache size: 535, Positive conditional cache size: 0, Positive unconditional cache size: 535, Negative cache size: 131, Negative conditional cache size: 0, Negative unconditional cache size: 131 ], Maximal queried relation: 0, Independence queries for same thread: 436410 - PositiveResult [Line: 76]: 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 11 procedures, 62 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39549.7ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 36957.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 65, 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: 34.6ms SsaConstructionTime, 230.8ms SatisfiabilityAnalysisTime, 1186.2ms InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 419 ConstructedInterpolants, 0 QuantifiedInterpolants, 2548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 190 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 57/132 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 11 procedures, 62 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8193.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 8188.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...