/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-serverassert07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:40:38,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:40:38,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:40:38,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:40:38,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:40:38,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:40:38,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:40:38,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:40:38,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:40:38,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:40:38,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:40:38,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:40:38,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:40:38,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:40:38,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:40:38,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:40:38,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:40:38,592 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 11:40:38,622 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:40:38,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:40:38,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:40:38,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:40:38,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:40:38,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:40:38,625 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:40:38,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:40:38,626 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:40:38,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:40:38,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:40:38,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:40:38,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:40:38,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:40:38,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:40:38,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:40:38,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:40:38,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:40:38,629 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:40:38,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 11:40:38,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:40:38,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:40:38,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:40:38,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:40:38,928 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:40:38,931 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:40:38,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl [2021-07-01 11:40:38,932 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl' [2021-07-01 11:40:38,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:40:38,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:40:38,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:38,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:40:38,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:40:38,967 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 11:40:38" (1/1) ... [2021-07-01 11:40:38,973 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 11:40:38" (1/1) ... [2021-07-01 11:40:38,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:38,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:40:38,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:40:38,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:40:39,000 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,001 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,002 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,002 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,005 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,009 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,010 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 11:40:38" (1/1) ... [2021-07-01 11:40:39,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:40:39,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:40:39,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:40:39,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:40:39,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:38" (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 11:40:39,088 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:40:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:40:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:40:39,088 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:40:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:40:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:40:39,089 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:40:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:40:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:40:39,090 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 11:40:39,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:40:39,379 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:40:39,380 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:40:39,381 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:39 BoogieIcfgContainer [2021-07-01 11:40:39,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:40:39,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:40:39,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:40:39,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:40:39,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:38" (1/2) ... [2021-07-01 11:40:39,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a5062c and model type bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:40:39, skipping insertion in model container [2021-07-01 11:40:39,386 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 11:40:39" (2/2) ... [2021-07-01 11:40:39,388 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert07.bpl [2021-07-01 11:40:39,392 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:40:39,393 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:40:39,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:40:39,393 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:40:39,472 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:40:39,493 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 11:40:39,558 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:39,558 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:39,559 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:39,559 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:39,559 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:39,559 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:39,559 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:39,559 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:40:39,755 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:39,760 INFO L82 PathProgramCache]: Analyzing trace with hash -988872060, now seen corresponding path program 1 times [2021-07-01 11:40:39,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:39,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716549124] [2021-07-01 11:40:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:40:39,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:39,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716549124] [2021-07-01 11:40:39,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716549124] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:39,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:39,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:40:39,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636138278] [2021-07-01 11:40:39,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:40:39,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:39,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:40:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:40:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:39,906 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:39,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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 11:40:39,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:39,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:40:39,951 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:39,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:39,951 INFO L82 PathProgramCache]: Analyzing trace with hash -752178158, now seen corresponding path program 1 times [2021-07-01 11:40:39,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:39,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868561260] [2021-07-01 11:40:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:39,996 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 11:40:39,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:39,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868561260] [2021-07-01 11:40:39,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868561260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:39,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:39,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:40:39,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040667755] [2021-07-01 11:40:39,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:40:39,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:40:40,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:40:40,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:40,000 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:40,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:40:40,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:40,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:40,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:40:40,586 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:40,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2137528846, now seen corresponding path program 1 times [2021-07-01 11:40:40,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:40,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894744336] [2021-07-01 11:40:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-01 11:40:40,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:40,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894744336] [2021-07-01 11:40:40,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894744336] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:40,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700899067] [2021-07-01 11:40:40,738 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 11:40:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:40,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-01 11:40:40,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 11:40:41,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700899067] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:41,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:41,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-07-01 11:40:41,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829495303] [2021-07-01 11:40:41,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-01 11:40:41,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:41,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-01 11:40:41,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-01 11:40:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:41,033 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:41,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 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 11:40:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:41,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:41,613 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:41,614 INFO L82 PathProgramCache]: Analyzing trace with hash -2123355858, now seen corresponding path program 1 times [2021-07-01 11:40:41,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:41,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608738727] [2021-07-01 11:40:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-01 11:40:41,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:41,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608738727] [2021-07-01 11:40:41,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608738727] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:41,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247762975] [2021-07-01 11:40:41,882 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 11:40:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:41,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-01 11:40:41,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-01 11:40:42,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247762975] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:42,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:42,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 11:40:42,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690147359] [2021-07-01 11:40:42,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:40:42,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:42,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:40:42,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:40:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:42,027 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:42,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 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 11:40:42,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:42,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:42,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:42,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:42,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:42,910 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:42,910 INFO L82 PathProgramCache]: Analyzing trace with hash 2082688245, now seen corresponding path program 1 times [2021-07-01 11:40:42,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:42,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924638330] [2021-07-01 11:40:42,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 11:40:43,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:43,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924638330] [2021-07-01 11:40:43,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924638330] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:43,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243957953] [2021-07-01 11:40:43,069 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 11:40:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:43,110 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-01 11:40:43,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:43,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 11:40:43,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243957953] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:43,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:43,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 16 [2021-07-01 11:40:43,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360246740] [2021-07-01 11:40:43,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-01 11:40:43,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:43,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-01 11:40:43,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-07-01 11:40:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:43,244 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:43,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 16 states have internal predecessors, (74), 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 11:40:43,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:43,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:43,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:43,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:43,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 11:40:49,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:40:49,686 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:49,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1100028278, now seen corresponding path program 1 times [2021-07-01 11:40:49,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:49,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138303394] [2021-07-01 11:40:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-01 11:40:49,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:49,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138303394] [2021-07-01 11:40:49,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138303394] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:49,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987769453] [2021-07-01 11:40:49,830 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 11:40:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:49,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 11:40:49,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-01 11:40:50,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987769453] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:50,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:50,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-07-01 11:40:50,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413747987] [2021-07-01 11:40:50,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 11:40:50,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:50,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 11:40:50,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-01 11:40:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:50,078 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:50,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 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 11:40:50,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:50,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:50,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:50,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:50,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 11:40:50,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:54,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 11:40:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:54,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-01 11:40:54,204 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:54,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:54,204 INFO L82 PathProgramCache]: Analyzing trace with hash -947419757, now seen corresponding path program 1 times [2021-07-01 11:40:54,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:54,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242756377] [2021-07-01 11:40:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-01 11:40:54,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:54,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242756377] [2021-07-01 11:40:54,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242756377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:54,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134842016] [2021-07-01 11:40:54,563 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 11:40:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:54,602 WARN L261 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 80 conjunts are in the unsatisfiable core [2021-07-01 11:40:54,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:40:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:40:54,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134842016] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:40:54,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:40:54,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 20 [2021-07-01 11:40:54,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352686423] [2021-07-01 11:40:54,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-01 11:40:54,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:54,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-01 11:40:54,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-07-01 11:40:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:54,818 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:54,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 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 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:40:54,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 11:41:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 11:41:15,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:15,154 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:41:15,156 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 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 11:41:15,163 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:41:15,164 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:41:15,164 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:41:15,164 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:41:15,164 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:41:15,164 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:41:15,164 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:41:15,164 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:41:24,780 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:41:24,781 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:41:24,783 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:24 BasicIcfg [2021-07-01 11:41:24,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:41:24,784 INFO L168 Benchmark]: Toolchain (without parser) took 45829.06 ms. Allocated memory was 255.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 235.8 MB in the beginning and 5.5 GB in the end (delta: -5.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-07-01 11:41:24,784 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 255.9 MB. Free memory is still 236.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:41:24,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.12 ms. Allocated memory is still 255.9 MB. Free memory was 235.6 MB in the beginning and 233.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:41:24,784 INFO L168 Benchmark]: Boogie Preprocessor took 17.69 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 232.9 MB in the end (delta: 935.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:41:24,784 INFO L168 Benchmark]: RCFGBuilder took 369.04 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 220.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:41:24,784 INFO L168 Benchmark]: TraceAbstraction took 45400.29 ms. Allocated memory was 255.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 219.5 MB in the beginning and 5.5 GB in the end (delta: -5.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-07-01 11:41:24,785 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 0.16 ms. Allocated memory is still 255.9 MB. Free memory is still 236.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.12 ms. Allocated memory is still 255.9 MB. Free memory was 235.6 MB in the beginning and 233.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.69 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 232.9 MB in the end (delta: 935.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 369.04 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 220.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 45400.29 ms. Allocated memory was 255.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 219.5 MB in the beginning and 5.5 GB in the end (delta: -5.3 GB). Peak memory consumption was 2.0 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: 4960885, positive: 4709418, positive conditional: 4709418, positive unconditional: 0, negative: 251467, negative conditional: 251467, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4758421, positive: 4709418, positive conditional: 4709418, positive unconditional: 0, negative: 49003, negative conditional: 49003, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4758421, positive: 4077924, positive conditional: 0, positive unconditional: 4077924, negative: 680497, negative conditional: 0, negative unconditional: 680497, 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: 524, positive conditional: 0, positive unconditional: 524, negative: 223, negative conditional: 0, negative unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 223, positive: 106, positive conditional: 0, positive unconditional: 106, 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: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4758421, positive: 4077294, positive conditional: 0, positive unconditional: 4077294, negative: 680380, negative conditional: 0, negative unconditional: 680380, unknown: 747, unknown conditional: 0, unknown unconditional: 747] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082, SemanticConditionEliminator.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1528370, positive: 631494, positive conditional: 631494, positive unconditional: 0, negative: 896876, negative conditional: 283794, negative unconditional: 613082, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1547, positive: 939, positive conditional: 833, positive unconditional: 106, negative: 608, negative conditional: 491, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2354, positive: 1471, positive conditional: 1189, positive unconditional: 282, negative: 883, negative conditional: 631, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528370, positive: 630661, positive conditional: 630661, positive unconditional: 0, negative: 896385, negative conditional: 283303, negative unconditional: 613082, unknown: 1324, unknown conditional: 1324, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 1463, Positive conditional cache size: 833, Positive unconditional cache size: 630, Negative cache size: 608, Negative conditional cache size: 491, Negative unconditional cache size: 117, Eliminated conditions: 613082 ], Maximal queried relation: 7, Independence queries for same thread: 202464 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4473202, positive: 3070385, positive conditional: 3070385, positive unconditional: 0, negative: 1402817, negative conditional: 1402817, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4073213, positive: 3070385, positive conditional: 3070385, positive unconditional: 0, negative: 1002828, negative conditional: 1002828, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4073213, positive: 3070385, positive conditional: 0, positive unconditional: 3070385, negative: 1002828, negative conditional: 0, negative unconditional: 1002828, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 536, positive conditional: 0, positive unconditional: 536, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 454, positive conditional: 0, positive unconditional: 454, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 214, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 214, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 242, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4073213, positive: 3069849, positive conditional: 0, positive unconditional: 3069849, negative: 1002696, negative conditional: 0, negative unconditional: 1002696, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 536, Positive conditional cache size: 0, Positive unconditional cache size: 536, Negative cache size: 132, Negative conditional cache size: 0, Negative unconditional cache size: 132 ], Maximal queried relation: 0, Independence queries for same thread: 399989 - 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: 35632.4ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.6ms, PartialOrderReductionTime: 32094.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 67, 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: 41.0ms SsaConstructionTime, 222.2ms SatisfiabilityAnalysisTime, 1723.2ms InterpolantComputationTime, 479 NumberOfCodeBlocks, 479 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 467 ConstructedInterpolants, 0 QuantifiedInterpolants, 2722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 263 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 126/240 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: 9623.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 9614.2ms, 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...