/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 20:58:29,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 20:58:29,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 20:58:29,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 20:58:29,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 20:58:29,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 20:58:29,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 20:58:29,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 20:58:29,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 20:58:29,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 20:58:29,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 20:58:29,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 20:58:29,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 20:58:29,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 20:58:29,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 20:58:29,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 20:58:29,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 20:58:29,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 20:58:29,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 20:58:29,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 20:58:29,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 20:58:29,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 20:58:29,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 20:58:29,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 20:58:29,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 20:58:29,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 20:58:29,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 20:58:29,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 20:58:29,312 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-None-NoLbe.epf [2021-07-09 20:58:29,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 20:58:29,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 20:58:29,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 20:58:29,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 20:58:29,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 20:58:29,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 20:58:29,346 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 20:58:29,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 20:58:29,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 20:58:29,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 20:58:29,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 20:58:29,349 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 20:58:29,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 20:58:29,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 20:58:29,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 20:58:29,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 20:58:29,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 20:58:29,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 20:58:29,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-09 20:58:29,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 20:58:29,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 20:58:29,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 20:58:29,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 20:58:29,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 20:58:29,667 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 20:58:29,669 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 20:58:29,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl [2021-07-09 20:58:29,670 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl' [2021-07-09 20:58:29,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 20:58:29,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 20:58:29,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 20:58:29,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 20:58:29,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 20:58:29,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 20:58:29,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 20:58:29,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 20:58:29,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 20:58:29,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... [2021-07-09 20:58:29,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 20:58:29,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 20:58:29,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 20:58:29,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 20:58:29,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 20:58:29,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 20:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 20:58:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 20:58:29,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 20:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 20:58:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 20:58:29,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 20:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 20:58:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 20:58:29,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 20:58:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 20:58:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 20:58:29,807 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 20:58:30,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 20:58:30,044 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 20:58:30,045 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 08:58:30 BoogieIcfgContainer [2021-07-09 20:58:30,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 20:58:30,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 20:58:30,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 20:58:30,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 20:58:30,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 08:58:29" (1/2) ... [2021-07-09 20:58:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0fe314 and model type ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 08:58:30, skipping insertion in model container [2021-07-09 20:58:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 08:58:30" (2/2) ... [2021-07-09 20:58:30,052 INFO L111 eAbstractionObserver]: Analyzing ICFG ring.wvr.bpl [2021-07-09 20:58:30,057 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 20:58:30,057 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 20:58:30,057 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 20:58:30,057 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 20:58:30,119 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-09 20:58:30,140 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-09 20:58:30,182 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 20:58:30,183 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 20:58:30,183 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 20:58:30,183 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 20:58:30,183 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 20:58:30,183 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 20:58:30,183 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 20:58:30,183 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 20:58:30,192 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 42 transitions, 108 flow [2021-07-09 20:58:30,265 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1005 states, 1004 states have (on average 2.9741035856573705) internal successors, (2986), 1004 states have internal predecessors, (2986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:30,276 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:30,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1409791103, now seen corresponding path program 1 times [2021-07-09 20:58:30,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:30,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166170749] [2021-07-09 20:58:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-07-09 20:58:30,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:30,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166170749] [2021-07-09 20:58:30,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166170749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 20:58:30,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 20:58:30,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-09 20:58:30,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421035821] [2021-07-09 20:58:30,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 20:58:30,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:30,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 20:58:30,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 20:58:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:30,523 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:30,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:30,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 20:58:30,562 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:30,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:30,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1845800363, now seen corresponding path program 2 times [2021-07-09 20:58:30,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:30,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629967332] [2021-07-09 20:58:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 20:58:30,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:30,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629967332] [2021-07-09 20:58:30,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629967332] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 20:58:30,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 20:58:30,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 20:58:30,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24332894] [2021-07-09 20:58:30,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 20:58:30,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:30,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 20:58:30,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-09 20:58:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:30,702 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:30,703 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:30,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:30,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:30,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 20:58:30,761 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash -901790412, now seen corresponding path program 3 times [2021-07-09 20:58:30,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:30,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778321592] [2021-07-09 20:58:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 20:58:30,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:30,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778321592] [2021-07-09 20:58:30,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778321592] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:30,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281761157] [2021-07-09 20:58:30,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:30,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 20:58:30,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 20:58:30,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-09 20:58:30,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 20:58:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-07-09 20:58:31,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281761157] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 20:58:31,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-09 20:58:31,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-07-09 20:58:31,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386831145] [2021-07-09 20:58:31,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 20:58:31,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:31,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 20:58:31,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-09 20:58:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:31,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:31,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:31,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:31,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:31,472 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:31,472 INFO L82 PathProgramCache]: Analyzing trace with hash 362682622, now seen corresponding path program 4 times [2021-07-09 20:58:31,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:31,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865506867] [2021-07-09 20:58:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 150 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 20:58:31,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:31,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865506867] [2021-07-09 20:58:31,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865506867] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:31,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723194371] [2021-07-09 20:58:31,630 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:31,719 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 20:58:31,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 20:58:31,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-09 20:58:31,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 20:58:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-07-09 20:58:31,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723194371] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:31,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 20:58:31,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3] total 8 [2021-07-09 20:58:31,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934828564] [2021-07-09 20:58:31,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 20:58:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:31,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 20:58:31,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2021-07-09 20:58:31,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:31,916 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:31,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:31,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:31,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:32,171 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash -603138383, now seen corresponding path program 5 times [2021-07-09 20:58:32,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:32,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612990695] [2021-07-09 20:58:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 20:58:32,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:32,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612990695] [2021-07-09 20:58:32,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612990695] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:32,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955570208] [2021-07-09 20:58:32,303 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:32,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-09 20:58:32,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 20:58:32,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-09 20:58:32,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 20:58:32,476 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 [2021-07-09 20:58:32,479 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 20:58:32,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 20:58:32,481 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 20:58:32,482 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-09 20:58:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 20:58:32,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955570208] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:32,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 20:58:32,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-09 20:58:32,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500515611] [2021-07-09 20:58:32,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 20:58:32,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:32,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 20:58:32,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 20:58:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:32,526 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:32,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:32,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:32,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 20:58:32,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:32,869 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 20:58:32,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 20:58:32,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1414618680, now seen corresponding path program 6 times [2021-07-09 20:58:32,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 20:58:32,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743204248] [2021-07-09 20:58:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 20:58:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 20:58:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 106 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-09 20:58:34,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 20:58:34,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743204248] [2021-07-09 20:58:34,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743204248] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:34,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568906306] [2021-07-09 20:58:34,327 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:58:34,406 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-09 20:58:34,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 20:58:34,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 99 conjunts are in the unsatisfiable core [2021-07-09 20:58:34,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 20:58:36,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 20:58:36,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 43 [2021-07-09 20:58:36,580 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 20:58:36,595 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-07-09 20:58:36,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 43 [2021-07-09 20:58:36,600 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 20:58:36,672 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 20:58:36,677 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-09 20:58:36,678 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:344, output treesize:252 [2021-07-09 20:58:37,105 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-07-09 20:58:37,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 43 [2021-07-09 20:58:37,108 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 20:58:37,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 20:58:37,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 20:58:37,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:128, output treesize:82 [2021-07-09 20:58:37,299 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-07-09 20:58:37,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 40 [2021-07-09 20:58:37,304 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 20:58:37,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 20:58:37,309 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 20:58:37,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:91, output treesize:17 [2021-07-09 20:58:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 125 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 20:58:37,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568906306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 20:58:37,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 20:58:37,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 37] total 59 [2021-07-09 20:58:37,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665881975] [2021-07-09 20:58:37,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-07-09 20:58:37,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 20:58:37,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-07-09 20:58:37,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=3308, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 20:58:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:37,549 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 20:58:37,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.5) internal successors, (150), 59 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-09 20:58:37,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 20:58:38,898 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-07-09 20:58:39,560 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2021-07-09 20:58:39,798 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-07-09 20:58:40,048 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2021-07-09 20:58:40,252 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2021-07-09 20:58:40,564 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 63 [2021-07-09 20:58:40,740 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-07-09 20:58:41,080 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 67 [2021-07-09 20:58:41,400 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 80 [2021-07-09 20:58:41,714 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 73 [2021-07-09 20:58:42,105 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-07-09 20:58:42,388 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2021-07-09 20:58:42,627 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-07-09 20:58:42,873 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-07-09 20:58:43,367 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-07-09 20:58:44,008 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-07-09 20:58:44,180 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 20:58:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-07-09 20:58:46,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-09 20:58:46,683 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 20:58:46,684 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 08:58:46 BasicIcfg [2021-07-09 20:58:46,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 20:58:46,684 INFO L168 Benchmark]: Toolchain (without parser) took 16983.80 ms. Allocated memory was 204.5 MB in the beginning and 382.7 MB in the end (delta: 178.3 MB). Free memory was 184.3 MB in the beginning and 241.8 MB in the end (delta: -57.4 MB). Peak memory consumption was 121.5 MB. Max. memory is 8.0 GB. [2021-07-09 20:58:46,684 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 204.5 MB. Free memory is still 185.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 20:58:46,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.08 ms. Allocated memory is still 204.5 MB. Free memory was 184.2 MB in the beginning and 182.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 20:58:46,685 INFO L168 Benchmark]: Boogie Preprocessor took 16.11 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 181.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 20:58:46,685 INFO L168 Benchmark]: RCFGBuilder took 304.45 ms. Allocated memory is still 204.5 MB. Free memory was 181.6 MB in the beginning and 163.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-07-09 20:58:46,685 INFO L168 Benchmark]: TraceAbstraction took 16636.82 ms. Allocated memory was 204.5 MB in the beginning and 382.7 MB in the end (delta: 178.3 MB). Free memory was 163.1 MB in the beginning and 241.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 100.5 MB. Max. memory is 8.0 GB. [2021-07-09 20:58:46,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 204.5 MB. Free memory is still 185.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.08 ms. Allocated memory is still 204.5 MB. Free memory was 184.2 MB in the beginning and 182.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.11 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 181.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.45 ms. Allocated memory is still 204.5 MB. Free memory was 181.6 MB in the beginning and 163.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16636.82 ms. Allocated memory was 204.5 MB in the beginning and 382.7 MB in the end (delta: 178.3 MB). Free memory was 163.1 MB in the beginning and 241.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 100.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 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] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.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] , DistributingIndependenceRelation.Statistics on underlying relations: [ 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: -1, Independence queries for same thread: 0 - PositiveResult [Line: 104]: 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: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16528.1ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 81.4ms, PartialOrderReductionTime: 9204.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1005occurred in iteration=0, InterpolantAutomatonStates: 89, 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: 82.8ms SsaConstructionTime, 449.0ms SatisfiabilityAnalysisTime, 5544.8ms InterpolantComputationTime, 730 NumberOfCodeBlocks, 730 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 720 ConstructedInterpolants, 0 QuantifiedInterpolants, 9387 SizeOfPredicates, 23 NumberOfNonLiveVariables, 794 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 631/892 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...