/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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 19:16:01,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 19:16:01,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 19:16:01,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 19:16:02,000 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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-14 19:16:02,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 19:16:02,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 19:16:02,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 19:16:02,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 19:16:02,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 19:16:02,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 19:16:02,035 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 19:16:02,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 19:16:02,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 19:16:02,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 19:16:02,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 19:16:02,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 19:16:02,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 19:16:02,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 19:16:02,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 19:16:02,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 19:16:02,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 19:16:02,038 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 19:16:02,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 19:16:02,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 19:16:02,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 19:16:02,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 19:16:02,328 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 19:16:02,329 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 19:16:02,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2021-07-14 19:16:02,329 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2021-07-14 19:16:02,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 19:16:02,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 19:16:02,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 19:16:02,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 19:16:02,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 19:16:02,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 19:16:02,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 19:16:02,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 19:16:02,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 19:16:02,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... [2021-07-14 19:16:02,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 19:16:02,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 19:16:02,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 19:16:02,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 19:16:02,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 19:16:02,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 19:16:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 19:16:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 19:16:02,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 19:16:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 19:16:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 19:16:02,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 19:16:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 19:16:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 19:16:02,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 19:16:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 19:16:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 19:16:02,429 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 19:16:02,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 19:16:02,648 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 19:16:02,650 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:16:02 BoogieIcfgContainer [2021-07-14 19:16:02,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 19:16:02,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 19:16:02,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 19:16:02,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 19:16:02,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:16:02" (1/2) ... [2021-07-14 19:16:02,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c37a3da and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:16:02, skipping insertion in model container [2021-07-14 19:16:02,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:16:02" (2/2) ... [2021-07-14 19:16:02,655 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2021-07-14 19:16:02,658 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 19:16:02,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 19:16:02,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 19:16:02,659 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 19:16:02,685 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 19:16:02,700 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 19:16:02,753 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 19:16:02,753 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 19:16:02,753 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 19:16:02,753 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 19:16:02,753 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 19:16:02,753 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 19:16:02,753 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 19:16:02,753 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 19:16:02,909 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:16:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:16:02,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1269086245, now seen corresponding path program 1 times [2021-07-14 19:16:02,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:16:02,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099292549] [2021-07-14 19:16:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:16:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:16:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 19:16:03,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:16:03,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099292549] [2021-07-14 19:16:03,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099292549] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:03,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637391941] [2021-07-14 19:16:03,071 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 [2021-07-14 19:16:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:16:03,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 19:16:03,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:16:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 19:16:03,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637391941] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:03,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:16:03,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 19:16:03,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22123772] [2021-07-14 19:16:03,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 19:16:03,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:16:03,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 19:16:03,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-14 19:16:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:03,247 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:16:03,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:16:03,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:03,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 19:16:03,592 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:16:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:16:03,592 INFO L82 PathProgramCache]: Analyzing trace with hash -433839043, now seen corresponding path program 2 times [2021-07-14 19:16:03,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:16:03,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359632491] [2021-07-14 19:16:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:16:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:16:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:16:03,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:16:03,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359632491] [2021-07-14 19:16:03,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359632491] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:03,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105724381] [2021-07-14 19:16:03,696 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 [2021-07-14 19:16:03,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 19:16:03,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:16:03,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 19:16:03,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:16:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:16:03,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105724381] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:03,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:16:03,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 19:16:03,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935980947] [2021-07-14 19:16:03,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 19:16:03,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:16:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 19:16:03,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 19:16:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:03,890 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:16:03,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 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) [2021-07-14 19:16:03,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:03,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:16:04,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:16:04,219 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:16:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:16:04,220 INFO L82 PathProgramCache]: Analyzing trace with hash -920162273, now seen corresponding path program 3 times [2021-07-14 19:16:04,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:16:04,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640412202] [2021-07-14 19:16:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:16:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:16:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:16:04,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:16:04,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640412202] [2021-07-14 19:16:04,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640412202] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:04,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827793378] [2021-07-14 19:16:04,341 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 [2021-07-14 19:16:04,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 19:16:04,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:16:04,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 19:16:04,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:16:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:16:04,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827793378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:04,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:16:04,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-07-14 19:16:04,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472575592] [2021-07-14 19:16:04,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 19:16:04,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:16:04,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 19:16:04,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-07-14 19:16:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:04,524 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:16:04,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:16:04,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:04,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:16:04,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:16:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:16:04,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:16:04,869 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:16:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:16:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash -125351039, now seen corresponding path program 4 times [2021-07-14 19:16:04,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:16:04,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501380196] [2021-07-14 19:16:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:16:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:16:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:16:05,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:16:05,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501380196] [2021-07-14 19:16:05,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501380196] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:05,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699651901] [2021-07-14 19:16:05,311 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 [2021-07-14 19:16:05,346 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 19:16:05,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:16:05,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 19:16:05,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:16:13,222 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 40 [2021-07-14 19:16:14,485 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 49 [2021-07-14 19:16:15,925 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 55 [2021-07-14 19:16:16,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:16:16,072 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:16:16,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 87 [2021-07-14 19:16:16,250 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 19:16:16,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:16:16,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:16:16,289 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:16:16,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 71 [2021-07-14 19:16:16,415 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 19:16:16,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:16:16,490 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:16:16,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-07-14 19:16:16,836 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 19:16:17,267 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-07-14 19:16:17,268 INFO L628 ElimStorePlain]: treesize reduction 400, result has 72.9 percent of original size [2021-07-14 19:16:17,383 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 19:16:17,384 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:87, output treesize:3 [2021-07-14 19:16:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:16:17,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699651901] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:16:17,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:16:17,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2021-07-14 19:16:17,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031776257] [2021-07-14 19:16:17,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 19:16:17,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:16:17,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 19:16:17,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=615, Unknown=6, NotChecked=0, Total=702 [2021-07-14 19:16:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:16:17,406 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:16:17,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:16:17,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:16:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:16:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:16:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:09,924 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-14 19:17:19,931 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-07-14 19:17:29,595 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-07-14 19:17:36,527 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2021-07-14 19:17:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:17:39,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:17:39,545 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:17:39,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:17:39,545 INFO L82 PathProgramCache]: Analyzing trace with hash -815933853, now seen corresponding path program 5 times [2021-07-14 19:17:39,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:17:39,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942679309] [2021-07-14 19:17:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:17:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:17:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:39,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:17:39,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942679309] [2021-07-14 19:17:39,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942679309] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:39,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799725143] [2021-07-14 19:17:39,676 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 [2021-07-14 19:17:39,708 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 19:17:39,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:17:39,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 19:17:39,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:17:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:39,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799725143] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:39,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:17:39,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-07-14 19:17:39,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226758590] [2021-07-14 19:17:39,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 19:17:39,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:17:39,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 19:17:39,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 19:17:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:39,913 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:17:39,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 24 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) [2021-07-14 19:17:39,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:39,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:39,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:39,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:17:39,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:40,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 19:17:40,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:17:40,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:17:40,682 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:17:40,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:17:40,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1199535535, now seen corresponding path program 6 times [2021-07-14 19:17:40,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:17:40,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365844395] [2021-07-14 19:17:40,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:17:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:17:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:40,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:17:40,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365844395] [2021-07-14 19:17:40,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365844395] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:40,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521510277] [2021-07-14 19:17:40,786 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 [2021-07-14 19:17:40,821 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 19:17:40,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:17:40,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 19:17:40,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:17:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:41,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521510277] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:41,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:17:41,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2021-07-14 19:17:41,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201369014] [2021-07-14 19:17:41,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 19:17:41,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:17:41,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 19:17:41,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-07-14 19:17:41,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:41,057 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:17:41,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.740740740740741) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:17:41,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 19:17:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:17:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:17:41,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:17:41,416 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:17:41,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:17:41,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1332347247, now seen corresponding path program 7 times [2021-07-14 19:17:41,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:17:41,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244008698] [2021-07-14 19:17:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:17:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:17:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:41,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:17:41,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244008698] [2021-07-14 19:17:41,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244008698] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:41,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866304656] [2021-07-14 19:17:41,554 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 [2021-07-14 19:17:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:17:41,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 19:17:41,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:17:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:41,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866304656] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:41,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:17:41,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-14 19:17:41,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566817162] [2021-07-14 19:17:41,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 19:17:41,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:17:41,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 19:17:41,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-14 19:17:41,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:41,842 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:17:41,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 29 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:17:41,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:17:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:17:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:17:42,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-07-14 19:17:42,245 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:17:42,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:17:42,245 INFO L82 PathProgramCache]: Analyzing trace with hash 774756083, now seen corresponding path program 8 times [2021-07-14 19:17:42,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:17:42,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414158841] [2021-07-14 19:17:42,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:17:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:17:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 4 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:17:42,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:17:42,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414158841] [2021-07-14 19:17:42,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414158841] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:17:42,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501989680] [2021-07-14 19:17:42,974 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 [2021-07-14 19:17:43,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 19:17:43,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:17:43,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 67 conjunts are in the unsatisfiable core [2021-07-14 19:17:43,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:17:43,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 111 [2021-07-14 19:17:43,919 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 19:17:43,932 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:17:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:17:43,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:17:43,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 77 [2021-07-14 19:17:43,950 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 19:17:43,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:17:44,080 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 19:17:44,081 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:17:44,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-07-14 19:17:44,591 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 190 [2021-07-14 19:17:45,694 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 228 DAG size of output: 212 [2021-07-14 19:17:48,265 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 266 DAG size of output: 236 [2021-07-14 19:17:50,814 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 266 DAG size of output: 236 [2021-07-14 19:17:53,622 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 288 DAG size of output: 258 [2021-07-14 19:18:02,951 WARN L205 SmtUtils]: Spent 9.33 s on a formula simplification. DAG size of input: 254 DAG size of output: 278 [2021-07-14 19:18:05,587 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 246 DAG size of output: 246 [2021-07-14 19:18:05,956 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 154 [2021-07-14 19:18:06,478 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 169 [2021-07-14 19:18:07,794 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 222 DAG size of output: 182 [2021-07-14 19:18:08,860 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 225 DAG size of output: 225 [2021-07-14 19:18:09,268 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 175 [2021-07-14 19:18:10,808 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 207 DAG size of output: 222 [2021-07-14 19:18:12,349 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 202 DAG size of output: 211 [2021-07-14 19:18:12,763 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 194 [2021-07-14 19:18:12,920 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 157 [2021-07-14 19:18:13,451 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 253 [2021-07-14 19:18:14,204 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 309 [2021-07-14 19:18:14,538 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2021-07-14 19:18:15,015 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-07-14 19:18:17,352 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 435 DAG size of output: 402 [2021-07-14 19:18:23,552 WARN L205 SmtUtils]: Spent 6.20 s on a formula simplification. DAG size of input: 513 DAG size of output: 476 [2021-07-14 19:18:38,976 WARN L205 SmtUtils]: Spent 15.42 s on a formula simplification. DAG size of input: 579 DAG size of output: 541 [2021-07-14 19:19:16,105 WARN L205 SmtUtils]: Spent 37.13 s on a formula simplification. DAG size of input: 661 DAG size of output: 622 [2021-07-14 19:20:44,683 WARN L205 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 760 DAG size of output: 695 [2021-07-14 19:24:14,057 WARN L205 SmtUtils]: Spent 3.49 m on a formula simplification. DAG size of input: 853 DAG size of output: 786 [2021-07-14 19:27:45,681 WARN L205 SmtUtils]: Spent 3.53 m on a formula simplification. DAG size of input: 853 DAG size of output: 786 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown