/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-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 23:15:27,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 23:15:27,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 23:15:27,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 23:15:27,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 23:15:27,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 23:15:27,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 23:15:27,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 23:15:27,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 23:15:27,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 23:15:27,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 23:15:27,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 23:15:27,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 23:15:27,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 23:15:27,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 23:15:27,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 23:15:27,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-03 23:15:27,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 23:15:27,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 23:15:27,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 23:15:27,673 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 23:15:27,710 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 23:15:27,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 23:15:27,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 23:15:27,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 23:15:27,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 23:15:27,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 23:15:27,714 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 23:15:27,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 23:15:27,714 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 23:15:27,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 23:15:27,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 23:15:27,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 23:15:27,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 23:15:27,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 23:15:27,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 23:15:27,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 23:15:27,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 23:15:27,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 23:15:27,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 23:15:27,718 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 23:15:27,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 23:15:28,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 23:15:28,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 23:15:28,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 23:15:28,103 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 23:15:28,105 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 23:15:28,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl [2021-05-03 23:15:28,106 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl' [2021-05-03 23:15:28,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 23:15:28,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 23:15:28,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 23:15:28,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 23:15:28,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 23:15:28,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 23:15:28,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 23:15:28,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 23:15:28,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 23:15:28,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/1) ... [2021-05-03 23:15:28,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 23:15:28,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 23:15:28,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 23:15:28,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 23:15:28,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (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 [2021-05-03 23:15:28,274 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 23:15:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 23:15:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 23:15:28,274 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 23:15:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 23:15:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 23:15:28,274 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 23:15:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 23:15:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 23:15:28,275 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 23:15:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 23:15:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 23:15:28,276 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 23:15:28,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 23:15:28,453 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 23:15:28,455 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 11:15:28 BoogieIcfgContainer [2021-05-03 23:15:28,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 23:15:28,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 23:15:28,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 23:15:28,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 23:15:28,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 11:15:28" (1/2) ... [2021-05-03 23:15:28,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c21846a and model type min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 11:15:28, skipping insertion in model container [2021-05-03 23:15:28,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 11:15:28" (2/2) ... [2021-05-03 23:15:28,463 INFO L111 eAbstractionObserver]: Analyzing ICFG min-le-max.wvr.bpl [2021-05-03 23:15:28,468 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 23:15:28,469 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 23:15:28,472 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 23:15:28,472 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 23:15:28,521 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-03 23:15:28,539 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-05-03 23:15:28,593 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 23:15:28,593 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 23:15:28,593 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 23:15:28,593 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 23:15:28,593 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 23:15:28,594 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 23:15:28,594 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 23:15:28,594 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 23:15:28,773 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 23:15:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 23:15:28,778 INFO L82 PathProgramCache]: Analyzing trace with hash -979026955, now seen corresponding path program 1 times [2021-05-03 23:15:28,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 23:15:28,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747701511] [2021-05-03 23:15:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 23:15:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 23:15:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 23:15:28,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747701511] [2021-05-03 23:15:28,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 23:15:28,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 23:15:28,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167536619] [2021-05-03 23:15:28,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 23:15:28,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 23:15:28,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 23:15:28,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 23:15:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:28,935 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 23:15:28,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) 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) [2021-05-03 23:15:28,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 23:15:28,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 23:15:28,956 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 23:15:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 23:15:28,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1860793345, now seen corresponding path program 1 times [2021-05-03 23:15:28,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 23:15:28,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272931873] [2021-05-03 23:15:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 23:15:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 23:15:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 23:15:29,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272931873] [2021-05-03 23:15:29,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896896435] [2021-05-03 23:15:29,009 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 [2021-05-03 23:15:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 23:15:29,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-03 23:15:29,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 23:15:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 23:15:29,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 23:15:29,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-05-03 23:15:29,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108437192] [2021-05-03 23:15:29,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 23:15:29,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 23:15:29,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 23:15:29,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-05-03 23:15:29,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:29,186 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 23:15:29,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 23:15:29,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 23:15:29,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 23:15:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 23:15:29,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 23:15:29,491 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 23:15:29,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 23:15:29,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1946886500, now seen corresponding path program 1 times [2021-05-03 23:15:29,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 23:15:29,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315369985] [2021-05-03 23:15:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 23:15:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 23:15:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 23:15:29,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315369985] [2021-05-03 23:15:29,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188204030] [2021-05-03 23:15:29,703 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 [2021-05-03 23:15:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 23:15:29,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 23:15:29,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 23:15:29,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-05-03 23:15:29,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 23:15:29,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 23:15:29,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 23:15:29,960 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-05-03 23:15:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 23:15:29,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 23:15:29,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-03 23:15:29,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948669905] [2021-05-03 23:15:29,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 23:15:29,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 23:15:29,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 23:15:29,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-05-03 23:15:29,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:29,998 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 23:15:29,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-05-03 23:15:29,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 23:15:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 23:15:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 23:15:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 23:15:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 23:15:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 23:15:30,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 23:15:30,352 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 11:15:30 BasicIcfg [2021-05-03 23:15:30,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 23:15:30,353 INFO L168 Benchmark]: Toolchain (without parser) took 2203.46 ms. Allocated memory is still 350.2 MB. Free memory was 329.9 MB in the beginning and 299.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.0 GB. [2021-05-03 23:15:30,353 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 350.2 MB. Free memory was 331.0 MB in the beginning and 331.0 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 23:15:30,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.14 ms. Allocated memory is still 350.2 MB. Free memory was 329.8 MB in the beginning and 328.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 23:15:30,353 INFO L168 Benchmark]: Boogie Preprocessor took 13.22 ms. Allocated memory is still 350.2 MB. Free memory was 328.4 MB in the beginning and 327.4 MB in the end (delta: 989.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 23:15:30,354 INFO L168 Benchmark]: RCFGBuilder took 266.22 ms. Allocated memory is still 350.2 MB. Free memory was 327.3 MB in the beginning and 316.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-05-03 23:15:30,354 INFO L168 Benchmark]: TraceAbstraction took 1895.39 ms. Allocated memory is still 350.2 MB. Free memory was 316.2 MB in the beginning and 299.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.0 GB. [2021-05-03 23:15:30,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 350.2 MB. Free memory was 331.0 MB in the beginning and 331.0 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.14 ms. Allocated memory is still 350.2 MB. Free memory was 329.8 MB in the beginning and 328.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.22 ms. Allocated memory is still 350.2 MB. Free memory was 328.4 MB in the beginning and 327.4 MB in the end (delta: 989.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 266.22 ms. Allocated memory is still 350.2 MB. Free memory was 327.3 MB in the beginning and 316.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1895.39 ms. Allocated memory is still 350.2 MB. Free memory was 316.2 MB in the beginning and 299.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.6 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: 89, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 75, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 424, positive: 418, positive conditional: 0, positive unconditional: 418, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 263, positive: 257, positive conditional: 0, positive unconditional: 257, 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: 263, positive: 248, positive conditional: 0, positive unconditional: 248, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 424, positive: 161, positive conditional: 0, positive unconditional: 161, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 263, unknown conditional: 0, unknown unconditional: 263] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 14 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 152, Number of persistent set computation: 106, Number of trivial persistent sets: 96, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 424, positive: 418, positive conditional: 0, positive unconditional: 418, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 263, positive: 257, positive conditional: 0, positive unconditional: 257, 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: 263, positive: 248, positive conditional: 0, positive unconditional: 248, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 424, positive: 161, positive conditional: 0, positive unconditional: 161, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 263, unknown conditional: 0, unknown unconditional: 263] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1794.8ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 387.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.1ms SsaConstructionTime, 91.1ms SatisfiabilityAnalysisTime, 633.3ms InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 SizeOfPredicates, 6 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...