/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 10:42:24,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 10:42:24,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 10:42:24,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 10:42:25,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 10:42:25,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 10:42:25,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 10:42:25,038 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-Persistent-NoLbe.epf [2021-06-14 10:42:25,072 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 10:42:25,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 10:42:25,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 10:42:25,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 10:42:25,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 10:42:25,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 10:42:25,075 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 10:42:25,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 10:42:25,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 10:42:25,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 10:42:25,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 10:42:25,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 10:42:25,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 10:42:25,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 10:42:25,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 10:42:25,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 10:42:25,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 10:42:25,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 10:42:25,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 10:42:25,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 10:42:25,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 10:42:25,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 10:42:25,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 10:42:25,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 10:42:25,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 10:42:25,088 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-14 10:42:25,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 10:42:25,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 10:42:25,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 10:42:25,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 10:42:25,335 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 10:42:25,336 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 10:42:25,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl [2021-06-14 10:42:25,336 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl' [2021-06-14 10:42:25,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 10:42:25,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 10:42:25,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 10:42:25,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 10:42:25,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 10:42:25,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 10:42:25,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 10:42:25,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 10:42:25,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 10:42:25,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/1) ... [2021-06-14 10:42:25,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 10:42:25,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 10:42:25,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 10:42:25,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 10:42:25,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (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 [2021-06-14 10:42:25,480 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 10:42:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 10:42:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 10:42:25,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 10:42:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 10:42:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 10:42:25,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 10:42:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 10:42:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 10:42:25,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 10:42:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 10:42:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 10:42:25,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-14 10:42:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-14 10:42:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-14 10:42:25,484 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 10:42:25,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 10:42:25,622 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 10:42:25,624 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 10:42:25 BoogieIcfgContainer [2021-06-14 10:42:25,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 10:42:25,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 10:42:25,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 10:42:25,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 10:42:25,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 10:42:25" (1/2) ... [2021-06-14 10:42:25,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3813ff6f and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 10:42:25, skipping insertion in model container [2021-06-14 10:42:25,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 10:42:25" (2/2) ... [2021-06-14 10:42:25,632 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2021-06-14 10:42:25,643 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 10:42:25,643 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 10:42:25,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 10:42:25,644 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 10:42:25,689 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-14 10:42:25,702 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-06-14 10:42:25,747 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 10:42:25,747 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 10:42:25,747 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 10:42:25,747 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 10:42:25,747 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 10:42:25,747 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 10:42:25,747 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 10:42:25,747 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 10:42:25,894 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:25,898 INFO L82 PathProgramCache]: Analyzing trace with hash 902582990, now seen corresponding path program 1 times [2021-06-14 10:42:25,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:25,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299165355] [2021-06-14 10:42:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 10:42:26,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:26,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299165355] [2021-06-14 10:42:26,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299165355] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:26,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713855308] [2021-06-14 10:42:26,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:26,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-14 10:42:26,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:26,395 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 [2021-06-14 10:42:26,400 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 10:42:26,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:26,402 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 10:42:26,402 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-14 10:42:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 10:42:26,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713855308] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:26,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:26,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-14 10:42:26,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572545555] [2021-06-14 10:42:26,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 10:42:26,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:26,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 10:42:26,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-14 10:42:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:26,479 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:26,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 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) [2021-06-14 10:42:26,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:26,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 10:42:26,869 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:26,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:26,870 INFO L82 PathProgramCache]: Analyzing trace with hash 894167422, now seen corresponding path program 2 times [2021-06-14 10:42:26,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:26,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619649578] [2021-06-14 10:42:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 10:42:26,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:26,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619649578] [2021-06-14 10:42:26,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619649578] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:26,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884254956] [2021-06-14 10:42:26,927 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 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 [2021-06-14 10:42:26,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 10:42:26,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:26,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-14 10:42:26,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 10:42:27,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884254956] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:27,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:27,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-14 10:42:27,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511781021] [2021-06-14 10:42:27,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-14 10:42:27,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:27,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-14 10:42:27,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-14 10:42:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:27,028 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:27,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-06-14 10:42:27,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:27,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:27,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:27,306 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:27,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1182771336, now seen corresponding path program 3 times [2021-06-14 10:42:27,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:27,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156688360] [2021-06-14 10:42:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 10:42:27,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:27,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156688360] [2021-06-14 10:42:27,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156688360] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:27,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071713478] [2021-06-14 10:42:27,354 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 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 [2021-06-14 10:42:27,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-14 10:42:27,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:27,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-14 10:42:27,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:27,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2021-06-14 10:42:27,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 10:42:27,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:27,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 10:42:27,503 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:12 [2021-06-14 10:42:27,579 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:27,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-06-14 10:42:27,593 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:27,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:27,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 10:42:27,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:35 [2021-06-14 10:42:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 10:42:27,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071713478] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:27,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:27,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 18 [2021-06-14 10:42:27,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60104275] [2021-06-14 10:42:27,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-14 10:42:27,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:27,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-14 10:42:27,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-14 10:42:27,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:27,744 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:27,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 18 states have internal predecessors, (71), 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) [2021-06-14 10:42:27,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:27,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:27,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:28,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:28,299 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:28,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1578074526, now seen corresponding path program 4 times [2021-06-14 10:42:28,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:28,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552737928] [2021-06-14 10:42:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 10:42:28,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:28,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552737928] [2021-06-14 10:42:28,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552737928] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:28,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758770025] [2021-06-14 10:42:28,360 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 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 [2021-06-14 10:42:28,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 10:42:28,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:28,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 10:42:28,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 10:42:28,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758770025] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:28,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:28,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-14 10:42:28,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819380894] [2021-06-14 10:42:28,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 10:42:28,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:28,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 10:42:28,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-14 10:42:28,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:28,489 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:28,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2021-06-14 10:42:28,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:28,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:28,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:28,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:28,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:28,821 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:28,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1697458280, now seen corresponding path program 5 times [2021-06-14 10:42:28,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:28,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360896946] [2021-06-14 10:42:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 32 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-14 10:42:28,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:28,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360896946] [2021-06-14 10:42:28,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360896946] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:28,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243421521] [2021-06-14 10:42:28,919 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:28,994 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-06-14 10:42:28,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:28,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-14 10:42:28,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 10:42:29,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243421521] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:29,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:29,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-06-14 10:42:29,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328238933] [2021-06-14 10:42:29,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-14 10:42:29,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:29,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-14 10:42:29,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-06-14 10:42:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:29,166 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:29,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.761904761904762) internal successors, (79), 20 states have internal predecessors, (79), 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) [2021-06-14 10:42:29,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:29,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:29,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:29,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:29,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:29,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:29,793 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:29,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:29,793 INFO L82 PathProgramCache]: Analyzing trace with hash 859177800, now seen corresponding path program 6 times [2021-06-14 10:42:29,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:29,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200137776] [2021-06-14 10:42:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 10:42:29,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:29,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200137776] [2021-06-14 10:42:29,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200137776] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:29,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848247507] [2021-06-14 10:42:29,883 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:29,925 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-14 10:42:29,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:29,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-14 10:42:29,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:30,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:30,190 INFO L354 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2021-06-14 10:42:30,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 23 treesize of output 54 [2021-06-14 10:42:30,208 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 10:42:30,274 INFO L628 ElimStorePlain]: treesize reduction 32, result has 72.6 percent of original size [2021-06-14 10:42:30,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:30,310 INFO L354 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2021-06-14 10:42:30,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 54 [2021-06-14 10:42:30,322 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:30,417 INFO L628 ElimStorePlain]: treesize reduction 28, result has 81.2 percent of original size [2021-06-14 10:42:30,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-06-14 10:42:30,444 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:71, output treesize:121 [2021-06-14 10:42:31,595 INFO L446 ElimStorePlain]: Different costs {5=[A, v_prenex_20, v_prenex_18, v_prenex_26], 6=[v_prenex_13, v_prenex_22], 88=[v_prenex_15]} [2021-06-14 10:42:31,629 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:31,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 57 [2021-06-14 10:42:31,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-14 10:42:32,238 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 206 [2021-06-14 10:42:32,239 INFO L628 ElimStorePlain]: treesize reduction 62, result has 90.9 percent of original size [2021-06-14 10:42:32,284 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:32,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 55 [2021-06-14 10:42:32,335 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2021-06-14 10:42:32,876 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 204 [2021-06-14 10:42:32,877 INFO L628 ElimStorePlain]: treesize reduction 37, result has 94.5 percent of original size [2021-06-14 10:42:32,914 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:32,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 55 [2021-06-14 10:42:32,969 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2021-06-14 10:42:33,559 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 205 [2021-06-14 10:42:33,560 INFO L628 ElimStorePlain]: treesize reduction 55, result has 92.3 percent of original size [2021-06-14 10:42:33,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:33,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 55 [2021-06-14 10:42:33,659 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:34,260 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 208 [2021-06-14 10:42:34,261 INFO L628 ElimStorePlain]: treesize reduction 14, result has 98.0 percent of original size [2021-06-14 10:42:34,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:34,311 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:34,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2021-06-14 10:42:34,358 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-06-14 10:42:34,978 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 209 [2021-06-14 10:42:34,978 INFO L628 ElimStorePlain]: treesize reduction 35, result has 95.2 percent of original size [2021-06-14 10:42:34,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:35,018 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:35,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 57 [2021-06-14 10:42:35,089 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:35,777 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 213 [2021-06-14 10:42:35,777 INFO L628 ElimStorePlain]: treesize reduction 43, result has 94.4 percent of original size [2021-06-14 10:42:35,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:35,830 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:35,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 57 [2021-06-14 10:42:35,853 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:35,899 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:35,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 55 [2021-06-14 10:42:35,970 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2021-06-14 10:42:36,031 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:36,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 55 [2021-06-14 10:42:36,064 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2021-06-14 10:42:36,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:36,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:36,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2021-06-14 10:42:36,141 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 3 xjuncts. [2021-06-14 10:42:36,185 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:36,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 55 [2021-06-14 10:42:36,213 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:36,249 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:36,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 57 [2021-06-14 10:42:36,274 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:37,343 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 238 DAG size of output: 224 [2021-06-14 10:42:37,344 INFO L628 ElimStorePlain]: treesize reduction 84, result has 89.8 percent of original size [2021-06-14 10:42:37,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 7 dim-1 vars, End of recursive call: and 12 xjuncts. [2021-06-14 10:42:37,532 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 24 variables, input treesize:585, output treesize:1153 [2021-06-14 10:42:37,716 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 28 [2021-06-14 10:42:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 31 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-06-14 10:42:37,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848247507] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:37,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:37,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 28 [2021-06-14 10:42:37,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878004911] [2021-06-14 10:42:37,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-14 10:42:37,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:37,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-14 10:42:37,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2021-06-14 10:42:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:37,872 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:37,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 28 states have internal predecessors, (89), 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) [2021-06-14 10:42:37,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:37,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:37,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:37,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:37,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:37,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:38,690 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-06-14 10:42:39,643 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-06-14 10:42:39,868 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2021-06-14 10:42:40,099 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2021-06-14 10:42:40,319 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-06-14 10:42:40,534 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-14 10:42:40,756 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-14 10:42:41,016 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-06-14 10:42:41,165 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2021-06-14 10:42:41,566 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-06-14 10:42:41,783 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-14 10:42:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:42,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:42,118 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:42,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:42,118 INFO L82 PathProgramCache]: Analyzing trace with hash -411902518, now seen corresponding path program 7 times [2021-06-14 10:42:42,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:42,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753914261] [2021-06-14 10:42:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 84 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 10:42:42,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:42,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753914261] [2021-06-14 10:42:42,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753914261] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:42,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696453036] [2021-06-14 10:42:42,229 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:42,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-14 10:42:42,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-06-14 10:42:42,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696453036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:42,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:42,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 17 [2021-06-14 10:42:42,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562452203] [2021-06-14 10:42:42,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-14 10:42:42,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:42,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-14 10:42:42,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-06-14 10:42:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:42,356 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:42,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 17 states have internal predecessors, (65), 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) [2021-06-14 10:42:42,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:42,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:42,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:42,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:42,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:42,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:42,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 10:42:42,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:42,712 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:42,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1963153352, now seen corresponding path program 8 times [2021-06-14 10:42:42,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:42,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901781706] [2021-06-14 10:42:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-14 10:42:42,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:42,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901781706] [2021-06-14 10:42:42,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901781706] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:42,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012094057] [2021-06-14 10:42:42,866 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:42,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 10:42:42,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:42,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-14 10:42:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-14 10:42:43,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012094057] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:43,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:43,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-06-14 10:42:43,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808823734] [2021-06-14 10:42:43,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-14 10:42:43,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:43,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-14 10:42:43,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-06-14 10:42:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:43,018 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:43,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 17 states have internal predecessors, (61), 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) [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 10:42:43,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 10:42:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:43,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:43,455 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:42:43,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:42:43,455 INFO L82 PathProgramCache]: Analyzing trace with hash -938507636, now seen corresponding path program 9 times [2021-06-14 10:42:43,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:42:43,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388018967] [2021-06-14 10:42:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:42:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:42:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 107 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-14 10:42:43,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:42:43,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388018967] [2021-06-14 10:42:43,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388018967] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:43,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840648787] [2021-06-14 10:42:43,620 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:42:43,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-14 10:42:43,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:42:43,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-14 10:42:43,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:42:43,804 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-14 10:42:43,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-06-14 10:42:43,807 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:43,828 INFO L628 ElimStorePlain]: treesize reduction 15, result has 67.4 percent of original size [2021-06-14 10:42:43,833 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-14 10:42:43,834 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2021-06-14 10:42:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:44,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 10:42:44,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-06-14 10:42:44,417 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 10:42:44,434 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-14 10:42:44,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-06-14 10:42:44,436 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:44,473 INFO L628 ElimStorePlain]: treesize reduction 15, result has 79.5 percent of original size [2021-06-14 10:42:44,479 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-06-14 10:42:44,479 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:50 [2021-06-14 10:42:44,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:44,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-06-14 10:42:44,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:44,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:44,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-06-14 10:42:44,650 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-14 10:42:44,669 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 10:42:44,678 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-14 10:42:44,678 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:42 [2021-06-14 10:42:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 41 proven. 40 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-14 10:42:44,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840648787] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:42:44,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:42:44,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12] total 30 [2021-06-14 10:42:44,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063772788] [2021-06-14 10:42:44,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-14 10:42:44,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:42:44,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-14 10:42:44,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2021-06-14 10:42:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:44,818 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:42:44,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.3333333333333335) internal successors, (100), 30 states have internal predecessors, (100), 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) [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 10:42:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:42:44,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:42:49,327 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-06-14 10:42:49,565 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-06-14 10:42:49,776 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-06-14 10:42:49,986 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-06-14 10:42:51,722 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-06-14 10:42:51,950 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-06-14 10:42:52,272 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-06-14 10:42:52,512 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-06-14 10:42:52,771 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-06-14 10:42:52,975 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-14 10:42:53,243 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-06-14 10:42:53,445 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-14 10:43:14,380 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2021-06-14 10:43:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:43:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 10:43:20,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable397 [2021-06-14 10:43:20,461 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:43:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:43:20,466 INFO L82 PathProgramCache]: Analyzing trace with hash 780248594, now seen corresponding path program 10 times [2021-06-14 10:43:20,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:43:20,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595369138] [2021-06-14 10:43:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:43:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:43:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 2552 proven. 528 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-06-14 10:43:21,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:43:21,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595369138] [2021-06-14 10:43:21,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595369138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:43:21,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425202076] [2021-06-14 10:43:21,310 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:43:21,383 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 10:43:21,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:43:21,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 76 conjunts are in the unsatisfiable core [2021-06-14 10:43:21,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:43:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 2649 proven. 431 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-06-14 10:43:21,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425202076] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:43:21,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:43:21,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 41 [2021-06-14 10:43:21,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278535492] [2021-06-14 10:43:21,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-14 10:43:21,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:43:21,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-14 10:43:21,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1123, Unknown=0, NotChecked=0, Total=1722 [2021-06-14 10:43:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:43:21,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:43:21,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 3.357142857142857) internal successors, (141), 41 states have internal predecessors, (141), 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) [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-14 10:43:21,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-14 10:43:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 10:43:23,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable443 [2021-06-14 10:43:23,289 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 10:43:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 10:43:23,289 INFO L82 PathProgramCache]: Analyzing trace with hash -398119366, now seen corresponding path program 11 times [2021-06-14 10:43:23,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 10:43:23,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348810696] [2021-06-14 10:43:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 10:43:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 10:43:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 6383 proven. 817 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-06-14 10:43:24,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 10:43:24,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348810696] [2021-06-14 10:43:24,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348810696] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:43:24,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002261804] [2021-06-14 10:43:24,888 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 10:43:27,634 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 80 check-sat command(s) [2021-06-14 10:43:27,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 10:43:27,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 55 conjunts are in the unsatisfiable core [2021-06-14 10:43:27,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 10:43:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 1443 proven. 5274 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2021-06-14 10:43:30,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002261804] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 10:43:30,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 10:43:30,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 53] total 117 [2021-06-14 10:43:30,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813944483] [2021-06-14 10:43:30,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-06-14 10:43:30,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 10:43:30,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-06-14 10:43:30,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2540, Invalid=11266, Unknown=0, NotChecked=0, Total=13806 [2021-06-14 10:43:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:43:30,011 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 10:43:30,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 2.847457627118644) internal successors, (336), 117 states have internal predecessors, (336), 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) [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-14 10:43:30,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 10:43:30,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 10:48:28,422 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-06-14 10:48:44,535 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-06-14 10:50:01,512 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 14