/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-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:40:22,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:40:22,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:40:22,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:40:22,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:40:22,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:40:22,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:40:22,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:40:22,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:40:22,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:40:22,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:40:22,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:40:22,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:40:22,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:40:22,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:40:22,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:40:22,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:40:22,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:40:22,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:40:22,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:40:22,951 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-Random521.epf [2021-07-01 11:40:22,991 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:40:22,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:40:22,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:40:22,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:40:22,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:40:22,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:40:22,996 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:40:22,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:40:22,996 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:40:22,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:40:22,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:40:22,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:40:22,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:40:22,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:40:22,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:40:22,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:40:22,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:40:23,000 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 11:40:23,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:40:23,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:40:23,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:40:23,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:40:23,001 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:40:23,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 11:40:23,001 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:40:23,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:40:23,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:40:23,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:40:23,311 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:40:23,312 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:40:23,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl [2021-07-01 11:40:23,313 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl' [2021-07-01 11:40:23,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:40:23,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:40:23,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:23,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:40:23,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:40:23,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:23,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:40:23,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:40:23,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:40:23,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/1) ... [2021-07-01 11:40:23,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:40:23,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:40:23,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:40:23,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:40:23,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (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 11:40:23,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:40:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:40:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:40:23,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:40:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:40:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:40:23,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:40:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:40:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:40:23,459 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 11:40:23,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:40:23,616 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:40:23,617 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:40:23,618 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:23 BoogieIcfgContainer [2021-07-01 11:40:23,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:40:23,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:40:23,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:40:23,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:40:23,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:23" (1/2) ... [2021-07-01 11:40:23,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123049fb and model type bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:40:23, skipping insertion in model container [2021-07-01 11:40:23,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:23" (2/2) ... [2021-07-01 11:40:23,625 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert03.bpl [2021-07-01 11:40:23,629 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:40:23,630 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:40:23,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:40:23,630 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:40:23,657 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:40:23,677 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 11:40:23,799 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:23,799 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:23,801 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:23,801 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:23,801 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:23,801 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:23,801 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:23,801 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:40:23,938 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1720267779, now seen corresponding path program 1 times [2021-07-01 11:40:23,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:23,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670166175] [2021-07-01 11:40:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:24,119 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 11:40:24,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:24,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670166175] [2021-07-01 11:40:24,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670166175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:24,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:24,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:40:24,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891432247] [2021-07-01 11:40:24,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:40:24,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:24,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:40:24,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:40:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,149 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:24,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 11:40:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:24,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:40:24,226 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:24,229 INFO L82 PathProgramCache]: Analyzing trace with hash -362252860, now seen corresponding path program 1 times [2021-07-01 11:40:24,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:24,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417803661] [2021-07-01 11:40:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:24,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:24,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417803661] [2021-07-01 11:40:24,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417803661] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:24,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:24,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:40:24,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907260996] [2021-07-01 11:40:24,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:40:24,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:24,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:40:24,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:40:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,275 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:24,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 11:40:24,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:24,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:24,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:40:24,365 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:24,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1442356402, now seen corresponding path program 2 times [2021-07-01 11:40:24,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:24,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785790785] [2021-07-01 11:40:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:24,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:24,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785790785] [2021-07-01 11:40:24,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785790785] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:24,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208507539] [2021-07-01 11:40:24,458 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 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 11:40:24,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-01 11:40:24,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-01 11:40:24,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-01 11:40:24,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:24,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208507539] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:24,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:24,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-07-01 11:40:24,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799386480] [2021-07-01 11:40:24,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:40:24,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:24,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:40:24,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:40:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,624 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:24,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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 11:40:24,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:24,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:25,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:25,125 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:25,126 INFO L82 PathProgramCache]: Analyzing trace with hash 123187977, now seen corresponding path program 1 times [2021-07-01 11:40:25,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:25,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824452046] [2021-07-01 11:40:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:40:25,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:25,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824452046] [2021-07-01 11:40:25,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824452046] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:25,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946005694] [2021-07-01 11:40:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:25,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-01 11:40:25,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:40:25,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946005694] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:25,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:25,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:40:25,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860693195] [2021-07-01 11:40:25,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:40:25,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:25,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:40:25,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:40:25,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:25,365 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:25,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 11:40:25,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:25,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:25,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:25,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:25,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:25,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:25,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:25,741 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:25,741 INFO L82 PathProgramCache]: Analyzing trace with hash -564993712, now seen corresponding path program 1 times [2021-07-01 11:40:25,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:25,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626683264] [2021-07-01 11:40:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:25,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:25,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626683264] [2021-07-01 11:40:25,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626683264] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:25,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59068508] [2021-07-01 11:40:25,861 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 11:40:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:25,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-01 11:40:25,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:26,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59068508] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:26,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:26,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-01 11:40:26,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36693196] [2021-07-01 11:40:26,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:40:26,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:26,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:40:26,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:40:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:26,016 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:26,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 11:40:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:40:26,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:26,505 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:26,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:26,505 INFO L82 PathProgramCache]: Analyzing trace with hash -940256754, now seen corresponding path program 1 times [2021-07-01 11:40:26,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:26,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984092655] [2021-07-01 11:40:26,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:40:26,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:26,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984092655] [2021-07-01 11:40:26,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984092655] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:26,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856470617] [2021-07-01 11:40:26,585 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 11:40:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:26,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 11:40:26,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:40:26,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856470617] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:26,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:26,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 11:40:26,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740930838] [2021-07-01 11:40:26,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:40:26,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:26,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:40:26,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:40:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:26,696 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:26,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 11:40:26,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:26,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:26,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:26,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:26,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:40:26,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:40:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:27,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-01 11:40:27,137 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:27,138 INFO L82 PathProgramCache]: Analyzing trace with hash -363176467, now seen corresponding path program 1 times [2021-07-01 11:40:27,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:27,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851038105] [2021-07-01 11:40:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:40:27,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:27,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851038105] [2021-07-01 11:40:27,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851038105] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:27,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005077043] [2021-07-01 11:40:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:27,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-01 11:40:27,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:40:27,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005077043] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:27,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:27,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-01 11:40:27,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590238845] [2021-07-01 11:40:27,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 11:40:27,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:27,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 11:40:27,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-07-01 11:40:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:27,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:27,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 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 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:27,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:27,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:40:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:27,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:27,959 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:40:27,960 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:40:27,965 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:27,965 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:27,965 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:27,965 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:27,965 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:27,966 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:27,966 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:27,966 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:40:28,039 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:40:28,039 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:40:28,042 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:40:28 BasicIcfg [2021-07-01 11:40:28,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:40:28,042 INFO L168 Benchmark]: Toolchain (without parser) took 4708.83 ms. Allocated memory was 255.9 MB in the beginning and 355.5 MB in the end (delta: 99.6 MB). Free memory was 236.0 MB in the beginning and 168.1 MB in the end (delta: 67.9 MB). Peak memory consumption was 168.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 INFO L168 Benchmark]: Boogie Preprocessor took 12.51 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 233.2 MB in the end (delta: 945.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 INFO L168 Benchmark]: RCFGBuilder took 239.73 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 220.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 INFO L168 Benchmark]: TraceAbstraction took 4422.39 ms. Allocated memory was 255.9 MB in the beginning and 355.5 MB in the end (delta: 99.6 MB). Free memory was 220.1 MB in the beginning and 168.1 MB in the end (delta: 51.9 MB). Peak memory consumption was 152.3 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:28,043 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.51 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 233.2 MB in the end (delta: 945.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 239.73 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 220.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4422.39 ms. Allocated memory was 255.9 MB in the beginning and 355.5 MB in the end (delta: 99.6 MB). Free memory was 220.1 MB in the beginning and 168.1 MB in the end (delta: 51.9 MB). Peak memory consumption was 152.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19126, positive: 16879, positive conditional: 16879, positive unconditional: 0, negative: 2247, negative conditional: 2247, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 17365, positive: 16879, positive conditional: 16879, positive unconditional: 0, negative: 486, negative conditional: 486, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 17365, positive: 14787, positive conditional: 0, positive unconditional: 14787, negative: 2578, negative conditional: 0, negative unconditional: 2578, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17365, positive: 14643, positive conditional: 0, positive unconditional: 14643, negative: 2551, negative conditional: 0, negative unconditional: 2551, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071, SemanticConditionEliminator.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7709, positive: 2092, positive conditional: 2092, positive unconditional: 0, negative: 5617, negative conditional: 2546, negative unconditional: 3071, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, positive: 90, positive conditional: 67, positive unconditional: 23, negative: 138, negative conditional: 111, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, positive: 154, positive conditional: 103, positive unconditional: 52, negative: 291, negative conditional: 176, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7709, positive: 2025, positive conditional: 2025, positive unconditional: 0, negative: 5506, negative conditional: 2435, negative unconditional: 3071, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 211, Positive conditional cache size: 67, Positive unconditional cache size: 144, Negative cache size: 138, Negative conditional cache size: 111, Negative unconditional cache size: 27, Eliminated conditions: 3071 ], Maximal queried relation: 7, Independence queries for same thread: 1761 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 789, positive: 467, positive conditional: 467, positive unconditional: 0, negative: 322, negative conditional: 322, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 624, positive: 467, positive conditional: 467, positive unconditional: 0, negative: 157, negative conditional: 157, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 624, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 624, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 105, unknown conditional: 0, unknown unconditional: 105] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 ], Maximal queried relation: 0, Independence queries for same thread: 165 - PositiveResult [Line: 72]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4266.3ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 1576.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.5ms SsaConstructionTime, 122.5ms SatisfiabilityAnalysisTime, 1006.5ms InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 1310 SizeOfPredicates, 4 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 13/35 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 71.6ms, 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...