/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-b7a4f01caba76767183cf06280be652b0b124764-b7a4f01 [2021-06-07 16:56:03,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 16:56:03,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 16:56:03,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 16:56:03,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf [2021-06-07 16:56:03,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 16:56:03,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 16:56:03,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 16:56:03,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 16:56:03,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 16:56:03,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 16:56:03,563 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 16:56:03,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 16:56:03,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 16:56:03,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 16:56:03,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 16:56:03,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 16:56:03,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 16:56:03,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 16:56:03,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 16:56:03,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 16:56:03,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 16:56:03,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 16:56:03,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 16:56:03,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 16:56:03,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 16:56:03,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 16:56:03,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 16:56:03,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-07 16:56:03,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 16:56:03,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 16:56:03,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 16:56:03,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 16:56:03,568 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 16:56:03,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 16:56:03,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 16:56:03,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 16:56:03,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 16:56:03,915 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 16:56:03,917 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 16:56:03,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2021-06-07 16:56:03,918 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2021-06-07 16:56:03,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 16:56:03,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 16:56:03,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 16:56:03,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 16:56:03,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 16:56:03,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 16:56:03,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 16:56:03,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 16:56:03,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 16:56:03,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:03,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... [2021-06-07 16:56:04,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 16:56:04,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 16:56:04,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 16:56:04,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 16:56:04,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 16:56:04,075 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 16:56:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 16:56:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 16:56:04,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 16:56:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 16:56:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 16:56:04,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 16:56:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 16:56:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 16:56:04,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 16:56:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 16:56:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 16:56:04,077 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 16:56:04,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 16:56:04,318 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 16:56:04,320 INFO L202 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:56:04 BoogieIcfgContainer [2021-06-07 16:56:04,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 16:56:04,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 16:56:04,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 16:56:04,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 16:56:04,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:56:03" (1/2) ... [2021-06-07 16:56:04,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db9c5d1 and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:56:04, skipping insertion in model container [2021-06-07 16:56:04,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:56:04" (2/2) ... [2021-06-07 16:56:04,326 INFO L111 eAbstractionObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2021-06-07 16:56:04,338 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 16:56:04,338 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 16:56:04,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 16:56:04,339 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 16:56:04,413 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 16:56:04,446 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 [2021-06-07 16:56:04,518 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 16:56:04,518 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 16:56:04,518 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 16:56:04,519 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 16:56:04,519 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 16:56:04,519 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 16:56:04,519 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 16:56:04,519 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 16:56:04,578 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:04,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:04,586 INFO L82 PathProgramCache]: Analyzing trace with hash -56402534, now seen corresponding path program 1 times [2021-06-07 16:56:04,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:04,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547188446] [2021-06-07 16:56:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:04,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:04,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547188446] [2021-06-07 16:56:04,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547188446] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 16:56:04,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 16:56:04,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 16:56:04,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788641211] [2021-06-07 16:56:04,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 16:56:04,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:04,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 16:56:04,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 16:56:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:04,760 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:04,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:04,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:04,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 16:56:04,823 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:04,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:04,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1402218612, now seen corresponding path program 2 times [2021-06-07 16:56:04,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:04,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187246174] [2021-06-07 16:56:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:05,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:05,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187246174] [2021-06-07 16:56:05,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187246174] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:05,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970014387] [2021-06-07 16:56:05,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:56:05,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 16:56:05,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:56:05,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-07 16:56:05,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:56:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:05,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970014387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:05,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:56:05,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-07 16:56:05,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499636012] [2021-06-07 16:56:05,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 16:56:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:05,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 16:56:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-07 16:56:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:05,456 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:05,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:05,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:05,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:56:05,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:56:05,767 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:05,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:05,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1280490526, now seen corresponding path program 3 times [2021-06-07 16:56:05,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:05,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285038297] [2021-06-07 16:56:05,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-07 16:56:05,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:05,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285038297] [2021-06-07 16:56:05,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285038297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:05,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5073030] [2021-06-07 16:56:05,890 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 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 [2021-06-07 16:56:05,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-07 16:56:05,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:56:05,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-07 16:56:05,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:56:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:06,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5073030] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:06,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:56:06,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 13 [2021-06-07 16:56:06,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863846131] [2021-06-07 16:56:06,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 16:56:06,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:06,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 16:56:06,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-06-07 16:56:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:06,107 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:06,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:06,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:06,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:56:06,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:56:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 16:56:06,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:56:06,569 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:06,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1024233178, now seen corresponding path program 4 times [2021-06-07 16:56:06,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:06,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386537527] [2021-06-07 16:56:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-07 16:56:06,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:06,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386537527] [2021-06-07 16:56:06,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386537527] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:06,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934846484] [2021-06-07 16:56:06,653 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 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 [2021-06-07 16:56:06,753 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 16:56:06,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:56:06,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-07 16:56:06,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:56:06,998 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:07,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934846484] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:56:07,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:56:07,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 15 [2021-06-07 16:56:07,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277823289] [2021-06-07 16:56:07,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-07 16:56:07,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-07 16:56:07,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-06-07 16:56:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:07,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:07,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:07,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:07,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:56:07,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 16:56:07,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 16:56:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-07 16:56:07,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:56:07,941 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:07,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:07,942 INFO L82 PathProgramCache]: Analyzing trace with hash -161741240, now seen corresponding path program 1 times [2021-06-07 16:56:07,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:07,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574482749] [2021-06-07 16:56:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-07 16:56:07,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:07,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574482749] [2021-06-07 16:56:07,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574482749] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 16:56:07,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 16:56:07,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-07 16:56:07,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921537890] [2021-06-07 16:56:07,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-07 16:56:07,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:07,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-07 16:56:07,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-07 16:56:07,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:07,970 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:07,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:07,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:07,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:07,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 16:56:07,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-07 16:56:07,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 16:56:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-07 16:56:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:56:08,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-07 16:56:08,183 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:08,183 INFO L82 PathProgramCache]: Analyzing trace with hash -68434048, now seen corresponding path program 1 times [2021-06-07 16:56:08,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:08,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006958359] [2021-06-07 16:56:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:08,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:08,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006958359] [2021-06-07 16:56:08,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006958359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 16:56:08,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 16:56:08,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-07 16:56:08,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967651998] [2021-06-07 16:56:08,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-07 16:56:08,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-07 16:56:08,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-07 16:56:08,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:08,210 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:08,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:56:08,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 16:56:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-07 16:56:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:56:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:56:08,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-07 16:56:08,343 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:56:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:56:08,344 INFO L82 PathProgramCache]: Analyzing trace with hash -960696906, now seen corresponding path program 1 times [2021-06-07 16:56:08,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:56:08,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443786390] [2021-06-07 16:56:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:56:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:56:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:56:08,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:56:08,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443786390] [2021-06-07 16:56:08,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443786390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 16:56:08,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 16:56:08,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-07 16:56:08,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704090585] [2021-06-07 16:56:08,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-07 16:56:08,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:56:08,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-07 16:56:08,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-07 16:56:08,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:08,439 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:56:08,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:56:08,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:56:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:56:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-07 16:56:08,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-07 16:56:08,657 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 16:56:08,660 INFO L202 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 04:56:08 BasicIcfg [2021-06-07 16:56:08,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 16:56:08,660 INFO L168 Benchmark]: Toolchain (without parser) took 4706.26 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 316.6 MB in the beginning and 307.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 80.5 MB. Max. memory is 16.0 GB. [2021-06-07 16:56:08,660 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 337.6 MB. Free memory is still 317.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 16:56:08,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.32 ms. Allocated memory is still 337.6 MB. Free memory was 316.5 MB in the beginning and 315.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 16:56:08,663 INFO L168 Benchmark]: Boogie Preprocessor took 17.12 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 314.0 MB in the end (delta: 991.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 16:56:08,663 INFO L168 Benchmark]: RCFGBuilder took 317.87 ms. Allocated memory is still 337.6 MB. Free memory was 314.0 MB in the beginning and 301.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-07 16:56:08,663 INFO L168 Benchmark]: TraceAbstraction took 4338.47 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 301.0 MB in the beginning and 307.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.0 GB. [2021-06-07 16:56:08,663 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 337.6 MB. Free memory is still 317.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.32 ms. Allocated memory is still 337.6 MB. Free memory was 316.5 MB in the beginning and 315.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.12 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 314.0 MB in the end (delta: 991.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 317.87 ms. Allocated memory is still 337.6 MB. Free memory was 314.0 MB in the beginning and 301.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4338.47 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 301.0 MB in the beginning and 307.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 63.7 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: 8768, positive: 8054, positive conditional: 8054, positive unconditional: 0, negative: 714, negative conditional: 714, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 8107, positive: 8054, positive conditional: 8054, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 8107, positive: 7781, positive conditional: 0, positive unconditional: 7781, negative: 326, negative conditional: 0, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 185, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 185, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8107, positive: 7601, positive conditional: 0, positive unconditional: 7601, negative: 321, negative conditional: 0, negative unconditional: 321, unknown: 185, unknown conditional: 0, unknown unconditional: 185] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240, SemanticConditionEliminator.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 322, negative conditional: 82, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 10, negative conditional: 5, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 44, negative conditional: 13, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 317, negative conditional: 77, negative unconditional: 240, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 188, Positive conditional cache size: 8, Positive unconditional cache size: 180, Negative cache size: 10, Negative conditional cache size: 5, Negative unconditional cache size: 5, Eliminated conditions: 240 ], Maximal queried relation: 7, Independence queries for same thread: 661 - PositiveResult [Line: 68]: 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, 55 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4170.9ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.8ms, PartialOrderReductionTime: 1705.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 95, 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: 49.3ms SsaConstructionTime, 131.1ms SatisfiabilityAnalysisTime, 1233.8ms InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 11 NumberOfNonLiveVariables, 232 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 74/131 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...