/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 01:56:24,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 01:56:24,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 01:56:24,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 01:56:24,138 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-DelaySleep-NoLbe-Random7777.epf [2021-06-07 01:56:24,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 01:56:24,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 01:56:24,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 01:56:24,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 01:56:24,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 01:56:24,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 01:56:24,159 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 01:56:24,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 01:56:24,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 01:56:24,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 01:56:24,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 01:56:24,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 01:56:24,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 01:56:24,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 01:56:24,164 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 01:56:24,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 01:56:24,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 01:56:24,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 01:56:24,467 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 01:56:24,468 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 01:56:24,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl [2021-06-07 01:56:24,469 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl' [2021-06-07 01:56:24,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 01:56:24,490 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 01:56:24,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 01:56:24,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 01:56:24,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 01:56:24,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 01:56:24,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 01:56:24,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 01:56:24,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 01:56:24,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... [2021-06-07 01:56:24,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 01:56:24,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 01:56:24,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 01:56:24,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 01:56:24,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 01:56:24,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2021-06-07 01:56:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2021-06-07 01:56:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2021-06-07 01:56:24,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2021-06-07 01:56:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2021-06-07 01:56:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2021-06-07 01:56:24,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 01:56:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 01:56:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 01:56:24,603 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 01:56:24,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 01:56:24,715 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-07 01:56:24,716 INFO L202 PluginConnector]: Adding new model Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 01:56:24 BoogieIcfgContainer [2021-06-07 01:56:24,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 01:56:24,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 01:56:24,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 01:56:24,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 01:56:24,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 01:56:24" (1/2) ... [2021-06-07 01:56:24,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b158c4d and model type Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 01:56:24, skipping insertion in model container [2021-06-07 01:56:24,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 01:56:24" (2/2) ... [2021-06-07 01:56:24,723 INFO L111 eAbstractionObserver]: Analyzing ICFG Peterson.bpl [2021-06-07 01:56:24,727 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 01:56:24,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 01:56:24,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-07 01:56:24,728 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 01:56:24,766 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 01:56:24,767 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 01:56:24,769 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 01:56:24,770 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 01:56:24,771 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-07 01:56:24,801 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 [2021-06-07 01:56:24,855 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 01:56:24,855 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 01:56:24,855 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 01:56:24,855 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 01:56:24,855 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 01:56:24,855 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 01:56:24,856 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 01:56:24,856 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0======== [2021-06-07 01:56:25,001 INFO L301 ceAbstractionStarter]: Result for error location Process0 was SAFE (1/5) [2021-06-07 01:56:25,003 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 01:56:25,034 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 01:56:25,034 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 01:56:25,035 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 01:56:25,035 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 01:56:25,035 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 01:56:25,035 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 01:56:25,035 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 01:56:25,035 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1======== [2021-06-07 01:56:25,139 INFO L301 ceAbstractionStarter]: Result for error location Process1 was SAFE (2/5) [2021-06-07 01:56:25,139 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 01:56:25,153 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 01:56:25,154 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 01:56:25,154 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 01:56:25,154 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 01:56:25,154 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 01:56:25,154 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 01:56:25,154 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 01:56:25,154 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 01:56:25,252 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/5) [2021-06-07 01:56:25,253 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-07 01:56:25,273 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 01:56:25,274 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 01:56:25,274 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 01:56:25,274 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 01:56:25,274 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 01:56:25,274 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 01:56:25,274 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 01:56:25,274 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1Thread1of1ForFork1======== [2021-06-07 01:56:25,278 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,283 INFO L82 PathProgramCache]: Analyzing trace with hash -541738660, now seen corresponding path program 1 times Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 01:56:25,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087342312] [2021-06-07 01:56:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087342312] [2021-06-07 01:56:25,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087342312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 01:56:25,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707251321] [2021-06-07 01:56:25,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-07 01:56:25,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-07 01:56:25,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-07 01:56:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,409 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 01:56:25,452 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,452 INFO L82 PathProgramCache]: Analyzing trace with hash 31688928, now seen corresponding path program 1 times [2021-06-07 01:56:25,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026699347] [2021-06-07 01:56:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026699347] [2021-06-07 01:56:25,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026699347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 01:56:25,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046224581] [2021-06-07 01:56:25,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 01:56:25,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 01:56:25,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-07 01:56:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,527 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 01:56:25,558 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,559 INFO L82 PathProgramCache]: Analyzing trace with hash -276072132, now seen corresponding path program 1 times [2021-06-07 01:56:25,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390087997] [2021-06-07 01:56:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390087997] [2021-06-07 01:56:25,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390087997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-07 01:56:25,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755997267] [2021-06-07 01:56:25,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 01:56:25,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 01:56:25,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 01:56:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,594 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-07 01:56:25,626 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1238054063, now seen corresponding path program 1 times [2021-06-07 01:56:25,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982111460] [2021-06-07 01:56:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982111460] [2021-06-07 01:56:25,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982111460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 01:56:25,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660228759] [2021-06-07 01:56:25,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 01:56:25,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 01:56:25,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-07 01:56:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,666 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-07 01:56:25,704 INFO L301 ceAbstractionStarter]: Result for error location Process1Thread1of1ForFork1 was SAFE (4/5) [2021-06-07 01:56:25,709 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-07 01:56:25,727 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 01:56:25,727 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 01:56:25,727 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 01:56:25,727 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 01:56:25,727 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 01:56:25,727 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 01:56:25,727 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 01:56:25,727 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0Thread1of1ForFork0======== [2021-06-07 01:56:25,729 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,730 INFO L82 PathProgramCache]: Analyzing trace with hash -258138270, now seen corresponding path program 1 times [2021-06-07 01:56:25,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934740287] [2021-06-07 01:56:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 01:56:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934740287] [2021-06-07 01:56:25,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934740287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 01:56:25,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224950006] [2021-06-07 01:56:25,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-07 01:56:25,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-07 01:56:25,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-07 01:56:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,742 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-07 01:56:25,791 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash -276072452, now seen corresponding path program 1 times [2021-06-07 01:56:25,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114477250] [2021-06-07 01:56:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114477250] [2021-06-07 01:56:25,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114477250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 01:56:25,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291352231] [2021-06-07 01:56:25,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 01:56:25,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 01:56:25,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-07 01:56:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-07 01:56:25,841 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,842 INFO L82 PathProgramCache]: Analyzing trace with hash -170254932, now seen corresponding path program 1 times [2021-06-07 01:56:25,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827770591] [2021-06-07 01:56:25,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827770591] [2021-06-07 01:56:25,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827770591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 01:56:25,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10946048] [2021-06-07 01:56:25,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 01:56:25,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 01:56:25,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 01:56:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,882 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-07 01:56:25,923 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-07 01:56:25,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 01:56:25,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1354486023, now seen corresponding path program 2 times [2021-06-07 01:56:25,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 01:56:25,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478279390] [2021-06-07 01:56:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 01:56:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 01:56:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 01:56:25,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 01:56:25,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478279390] [2021-06-07 01:56:25,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478279390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 01:56:25,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 01:56:25,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 01:56:25,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503181964] [2021-06-07 01:56:25,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 01:56:25,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 01:56:25,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 01:56:25,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-07 01:56:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,956 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 01:56:25,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 01:56:25,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 01:56:25,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 01:56:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 01:56:25,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-07 01:56:26,006 INFO L301 ceAbstractionStarter]: Result for error location Process0Thread1of1ForFork0 was SAFE (5/5) [2021-06-07 01:56:26,007 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 01:56:26,010 INFO L202 PluginConnector]: Adding new model Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 01:56:26 BasicIcfg [2021-06-07 01:56:26,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 01:56:26,011 INFO L168 Benchmark]: Toolchain (without parser) took 1521.05 ms. Allocated memory is still 367.0 MB. Free memory was 346.3 MB in the beginning and 259.9 MB in the end (delta: 86.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 16.0 GB. [2021-06-07 01:56:26,011 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 367.0 MB. Free memory is still 347.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 01:56:26,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.17 ms. Allocated memory is still 367.0 MB. Free memory was 346.3 MB in the beginning and 344.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 01:56:26,012 INFO L168 Benchmark]: Boogie Preprocessor took 14.29 ms. Allocated memory is still 367.0 MB. Free memory was 344.8 MB in the beginning and 343.8 MB in the end (delta: 972.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 01:56:26,012 INFO L168 Benchmark]: RCFGBuilder took 185.97 ms. Allocated memory is still 367.0 MB. Free memory was 343.8 MB in the beginning and 334.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-07 01:56:26,012 INFO L168 Benchmark]: TraceAbstraction took 1292.25 ms. Allocated memory is still 367.0 MB. Free memory was 333.6 MB in the beginning and 259.9 MB in the end (delta: 73.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.0 GB. [2021-06-07 01:56:26,015 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 367.0 MB. Free memory is still 347.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.17 ms. Allocated memory is still 367.0 MB. Free memory was 346.3 MB in the beginning and 344.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.29 ms. Allocated memory is still 367.0 MB. Free memory was 344.8 MB in the beginning and 343.8 MB in the end (delta: 972.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 185.97 ms. Allocated memory is still 367.0 MB. Free memory was 343.8 MB in the beginning and 334.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1292.25 ms. Allocated memory is still 367.0 MB. Free memory was 333.6 MB in the beginning and 259.9 MB in the end (delta: 73.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 480, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 104, negative conditional: 104, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 0, positive unconditional: 376, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 400, positive: 258, positive conditional: 0, positive unconditional: 258, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 480, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 104, negative conditional: 104, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 0, positive unconditional: 376, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 400, positive: 258, positive conditional: 0, positive unconditional: 258, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 480, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 104, negative conditional: 104, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 376, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 400, positive: 376, positive conditional: 0, positive unconditional: 376, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 400, positive: 258, positive conditional: 0, positive unconditional: 258, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 402, positive: 308, positive conditional: 308, positive unconditional: 0, negative: 94, negative conditional: 94, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 324, positive: 308, positive conditional: 308, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 324, positive: 308, positive conditional: 0, positive unconditional: 308, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 118, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 118, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 324, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 118, unknown conditional: 0, unknown unconditional: 118] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, SemanticConditionEliminator.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 4, negative unconditional: 48, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Eliminated conditions: 48, SemanticConditionEliminator.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 4, negative unconditional: 48, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Eliminated conditions: 48, SemanticConditionEliminator.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 4, negative unconditional: 48, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Eliminated conditions: 48, SemanticConditionEliminator.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 7, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 4, negative unconditional: 48, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Eliminated conditions: 48 ], Maximal queried relation: 4, Independence queries for same thread: 78 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 430, positive: 328, positive conditional: 328, positive unconditional: 0, negative: 102, negative conditional: 102, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 352, positive: 328, positive conditional: 328, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 352, positive: 327, positive conditional: 0, positive unconditional: 327, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 124, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 124, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 17, negative conditional: 5, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 62, negative conditional: 8, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 352, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 124, unknown conditional: 0, unknown unconditional: 124] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 1, Positive unconditional cache size: 112, Negative cache size: 17, Negative conditional cache size: 5, Negative unconditional cache size: 12, SemanticConditionEliminator.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 17, negative conditional: 5, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 62, negative conditional: 8, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 81, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 5, negative unconditional: 70, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 1, Positive unconditional cache size: 112, Negative cache size: 17, Negative conditional cache size: 5, Negative unconditional cache size: 12, Eliminated conditions: 70, SemanticConditionEliminator.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 17, negative conditional: 5, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 62, negative conditional: 8, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 81, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 5, negative unconditional: 70, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 1, Positive unconditional cache size: 112, Negative cache size: 17, Negative conditional cache size: 5, Negative unconditional cache size: 12, Eliminated conditions: 70, SemanticConditionEliminator.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 17, negative conditional: 5, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 62, negative conditional: 8, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 81, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 5, negative unconditional: 70, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 1, Positive unconditional cache size: 112, Negative cache size: 17, Negative conditional cache size: 5, Negative unconditional cache size: 12, Eliminated conditions: 70, SemanticConditionEliminator.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 80, negative conditional: 10, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 17, negative conditional: 5, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 62, negative conditional: 8, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 81, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 5, negative unconditional: 70, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 1, Positive unconditional cache size: 112, Negative cache size: 17, Negative conditional cache size: 5, Negative unconditional cache size: 12, Eliminated conditions: 70 ], Maximal queried relation: 4, Independence queries for same thread: 78 - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 54]: 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: Process0 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 179.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 130.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process1 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 133.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 100.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 111.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 95.6ms, 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 449.0ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 140.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 13, 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: 5.8ms SsaConstructionTime, 24.4ms SatisfiabilityAnalysisTime, 126.0ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: Process0Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 296.1ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 143.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.7ms SsaConstructionTime, 19.4ms SatisfiabilityAnalysisTime, 73.7ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...