/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/queue-add-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 21:27:05,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 21:27:05,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 21:27:05,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 21:27:05,654 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 [2021-06-14 21:27:05,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 21:27:05,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 21:27:05,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 21:27:05,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 21:27:05,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 21:27:05,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 21:27:05,678 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 21:27:05,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 21:27:05,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 21:27:05,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 21:27:05,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 21:27:05,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 21:27:05,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 21:27:05,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 21:27:05,681 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 21:27:05,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 21:27:05,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 21:27:05,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 21:27:05,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 21:27:05,945 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 21:27:05,946 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 21:27:05,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/queue-add-3.wvr.bpl [2021-06-14 21:27:05,946 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/queue-add-3.wvr.bpl' [2021-06-14 21:27:05,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 21:27:05,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 21:27:05,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 21:27:05,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 21:27:05,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 21:27:05,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:05,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:05,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 21:27:05,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 21:27:05,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 21:27:05,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 21:27:06,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/1) ... [2021-06-14 21:27:06,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 21:27:06,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 21:27:06,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 21:27:06,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 21:27:06,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (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 21:27:06,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 21:27:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 21:27:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 21:27:06,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 21:27:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 21:27:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 21:27:06,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 21:27:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 21:27:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 21:27:06,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 21:27:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 21:27:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 21:27:06,075 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 21:27:06,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 21:27:06,268 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 21:27:06,269 INFO L202 PluginConnector]: Adding new model queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:27:06 BoogieIcfgContainer [2021-06-14 21:27:06,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 21:27:06,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 21:27:06,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 21:27:06,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 21:27:06,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:27:05" (1/2) ... [2021-06-14 21:27:06,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa6dc5d and model type queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 09:27:06, skipping insertion in model container [2021-06-14 21:27:06,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:27:06" (2/2) ... [2021-06-14 21:27:06,274 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-3.wvr.bpl [2021-06-14 21:27:06,278 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 21:27:06,278 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 21:27:06,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 21:27:06,279 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 21:27:06,305 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 21:27:06,319 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 21:27:06,357 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 21:27:06,357 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 21:27:06,357 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 21:27:06,357 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 21:27:06,357 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 21:27:06,357 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 21:27:06,357 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 21:27:06,358 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 21:27:06,566 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:06,573 INFO L82 PathProgramCache]: Analyzing trace with hash -618653523, now seen corresponding path program 1 times [2021-06-14 21:27:06,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:06,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141148855] [2021-06-14 21:27:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 79 proven. 9 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-06-14 21:27:06,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:06,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141148855] [2021-06-14 21:27:06,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141148855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:06,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796062894] [2021-06-14 21:27:06,808 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 21:27:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:06,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-14 21:27:06,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-06-14 21:27:07,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796062894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 21:27:07,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-14 21:27:07,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-14 21:27:07,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008879708] [2021-06-14 21:27:07,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 21:27:07,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:07,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 21:27:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-14 21:27:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:07,106 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:07,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:27:07,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:07,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 21:27:07,389 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:07,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1462803651, now seen corresponding path program 2 times [2021-06-14 21:27:07,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:07,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904035833] [2021-06-14 21:27:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 45 proven. 276 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-14 21:27:07,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:07,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904035833] [2021-06-14 21:27:07,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904035833] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:07,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777118928] [2021-06-14 21:27:07,618 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 21:27:07,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 21:27:07,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:07,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-14 21:27:07,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:08,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:08,110 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-14 21:27:08,111 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:08,116 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:08,117 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 21:27:08,118 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:3 [2021-06-14 21:27:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 48 proven. 273 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-14 21:27:08,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777118928] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:08,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:08,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 21 [2021-06-14 21:27:08,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287284550] [2021-06-14 21:27:08,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-14 21:27:08,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:08,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-14 21:27:08,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-06-14 21:27:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:08,160 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:08,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 7.0) internal successors, (154), 21 states have internal predecessors, (154), 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 21:27:08,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:08,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:08,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:08,923 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:08,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2108922815, now seen corresponding path program 3 times [2021-06-14 21:27:08,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:08,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247049698] [2021-06-14 21:27:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 292 proven. 151 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2021-06-14 21:27:09,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:09,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247049698] [2021-06-14 21:27:09,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247049698] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:09,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798288729] [2021-06-14 21:27:09,158 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 21:27:09,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-06-14 21:27:09,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:09,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-14 21:27:09,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:09,535 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 21:27:09,536 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:09,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:09,538 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 21:27:09,538 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 21:27:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 185 proven. 65 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-06-14 21:27:09,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798288729] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:09,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:09,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 12 [2021-06-14 21:27:09,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397776589] [2021-06-14 21:27:09,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 21:27:09,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:09,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 21:27:09,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-14 21:27:09,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:09,612 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:09,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 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 21:27:09,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:09,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:09,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:09,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:10,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:10,069 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:10,070 INFO L82 PathProgramCache]: Analyzing trace with hash 567197663, now seen corresponding path program 4 times [2021-06-14 21:27:10,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:10,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555853432] [2021-06-14 21:27:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 11 proven. 713 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-06-14 21:27:10,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:10,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555853432] [2021-06-14 21:27:10,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555853432] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:10,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681987833] [2021-06-14 21:27:10,339 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 21:27:10,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 21:27:10,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:10,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-14 21:27:10,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:10,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:10,951 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:27:10,952 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:10,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:10,957 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:10,957 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:27:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 10 proven. 707 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-14 21:27:10,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681987833] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:10,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:10,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 22 [2021-06-14 21:27:10,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222086189] [2021-06-14 21:27:10,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-14 21:27:10,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:10,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-14 21:27:10,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-06-14 21:27:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:10,984 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:10,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 8.521739130434783) internal successors, (196), 22 states have internal predecessors, (196), 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 21:27:10,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:10,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:10,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:10,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:11,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:11,731 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1499363043, now seen corresponding path program 5 times [2021-06-14 21:27:11,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:11,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121327981] [2021-06-14 21:27:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 14 proven. 1258 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-06-14 21:27:12,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:12,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121327981] [2021-06-14 21:27:12,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121327981] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:12,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639552602] [2021-06-14 21:27:12,017 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 21:27:12,131 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2021-06-14 21:27:12,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:12,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-14 21:27:12,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:12,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:12,748 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-14 21:27:12,749 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:12,753 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:12,754 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:12,754 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2021-06-14 21:27:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 13 proven. 1252 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-06-14 21:27:12,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639552602] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:12,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:12,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 25 [2021-06-14 21:27:12,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257694082] [2021-06-14 21:27:12,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-14 21:27:12,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:12,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-14 21:27:12,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-06-14 21:27:12,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:12,790 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:12,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 25 states have internal predecessors, (240), 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 21:27:12,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:12,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:12,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:12,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:12,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:13,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:13,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:13,689 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:13,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:13,690 INFO L82 PathProgramCache]: Analyzing trace with hash -356391717, now seen corresponding path program 6 times [2021-06-14 21:27:13,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:13,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100586838] [2021-06-14 21:27:13,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2037 backedges. 17 proven. 1958 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-06-14 21:27:13,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:13,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100586838] [2021-06-14 21:27:13,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100586838] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:13,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264553215] [2021-06-14 21:27:13,996 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 21:27:14,115 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2021-06-14 21:27:14,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:14,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 68 conjunts are in the unsatisfiable core [2021-06-14 21:27:14,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:14,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:14,871 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:27:14,872 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:14,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:14,876 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:14,877 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:27:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2037 backedges. 16 proven. 1952 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-06-14 21:27:14,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264553215] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:14,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:14,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 29 [2021-06-14 21:27:14,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771339313] [2021-06-14 21:27:14,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-14 21:27:14,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:14,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-14 21:27:14,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-06-14 21:27:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:14,908 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:14,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 9.466666666666667) internal successors, (284), 29 states have internal predecessors, (284), 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 21:27:14,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:14,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:14,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 21:27:14,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:14,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:14,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:16,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:16,313 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:16,313 INFO L82 PathProgramCache]: Analyzing trace with hash 471074234, now seen corresponding path program 7 times [2021-06-14 21:27:16,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:16,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639616515] [2021-06-14 21:27:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 98 proven. 5166 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-06-14 21:27:16,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:16,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639616515] [2021-06-14 21:27:16,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639616515] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:16,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552696733] [2021-06-14 21:27:16,911 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 21:27:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:17,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 108 conjunts are in the unsatisfiable core [2021-06-14 21:27:17,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:18,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:18,301 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:27:18,301 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:18,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:18,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:18,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:27:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 97 proven. 5160 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-06-14 21:27:18,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552696733] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:18,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:18,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26] total 41 [2021-06-14 21:27:18,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587258934] [2021-06-14 21:27:18,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-14 21:27:18,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:18,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-14 21:27:18,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1620, Unknown=0, NotChecked=0, Total=1722 [2021-06-14 21:27:18,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:18,352 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:18,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 9.785714285714286) internal successors, (411), 41 states have internal predecessors, (411), 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 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:18,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:20,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-14 21:27:20,597 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:20,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:20,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1201073901, now seen corresponding path program 8 times [2021-06-14 21:27:20,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:20,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611914325] [2021-06-14 21:27:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10309 backedges. 176 proven. 3109 refuted. 0 times theorem prover too weak. 7024 trivial. 0 not checked. [2021-06-14 21:27:21,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:21,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611914325] [2021-06-14 21:27:21,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611914325] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:21,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290609563] [2021-06-14 21:27:21,097 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 21:27:21,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 21:27:21,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:21,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 148 conjunts are in the unsatisfiable core [2021-06-14 21:27:21,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:22,601 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 21:27:22,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:22,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:22,603 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 21:27:22,603 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 21:27:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10309 backedges. 0 proven. 10138 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-06-14 21:27:22,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290609563] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:22,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:22,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 34] total 44 [2021-06-14 21:27:22,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690231418] [2021-06-14 21:27:22,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-14 21:27:22,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:22,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-14 21:27:22,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2021-06-14 21:27:22,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:22,691 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:22,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 9.6) internal successors, (432), 44 states have internal predecessors, (432), 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 21:27:22,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:22,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:29,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-14 21:27:29,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:29,469 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:29,470 INFO L82 PathProgramCache]: Analyzing trace with hash -328835893, now seen corresponding path program 9 times [2021-06-14 21:27:29,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:29,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482585996] [2021-06-14 21:27:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13405 backedges. 41 proven. 13183 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-06-14 21:27:30,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:30,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482585996] [2021-06-14 21:27:30,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482585996] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:30,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022118559] [2021-06-14 21:27:30,598 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 21:27:30,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 63 check-sat command(s) [2021-06-14 21:27:30,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:30,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 216 conjunts are in the unsatisfiable core [2021-06-14 21:27:30,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:33,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:33,670 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-14 21:27:33,671 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:33,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:33,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:33,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2021-06-14 21:27:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 13405 backedges. 47 proven. 13200 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-06-14 21:27:33,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022118559] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:33,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:33,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 62] total 83 [2021-06-14 21:27:33,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580574354] [2021-06-14 21:27:33,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-06-14 21:27:33,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:33,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-06-14 21:27:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=6751, Unknown=0, NotChecked=0, Total=6972 [2021-06-14 21:27:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:33,752 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:33,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 7.833333333333333) internal successors, (658), 83 states have internal predecessors, (658), 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 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-06-14 21:27:33,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:27:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:27:44,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:44,456 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1572023205, now seen corresponding path program 10 times [2021-06-14 21:27:44,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:44,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970475045] [2021-06-14 21:27:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 23932 backedges. 202 proven. 23477 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-06-14 21:27:46,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:46,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970475045] [2021-06-14 21:27:46,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970475045] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:46,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371357792] [2021-06-14 21:27:46,211 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 21:27:46,452 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 21:27:46,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:27:46,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 220 conjunts are in the unsatisfiable core [2021-06-14 21:27:46,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:49,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:27:49,364 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:27:49,365 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:49,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:49,369 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:49,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:27:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 23932 backedges. 201 proven. 23471 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-06-14 21:27:49,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371357792] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:49,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:49,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 48] total 74 [2021-06-14 21:27:49,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460645550] [2021-06-14 21:27:49,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-06-14 21:27:49,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:49,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-06-14 21:27:49,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=5371, Unknown=0, NotChecked=0, Total=5550 [2021-06-14 21:27:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:49,432 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:49,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 10.666666666666666) internal successors, (800), 74 states have internal predecessors, (800), 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 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:27:49,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:27:49,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:53,860 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:27:54,110 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:27:54,378 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:27:54,916 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-06-14 21:27:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:27:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:27:57,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-14 21:27:57,301 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:57,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:57,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1885455715, now seen corresponding path program 11 times [2021-06-14 21:27:57,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:57,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514841898] [2021-06-14 21:27:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 36108 backedges. 250 proven. 35544 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-06-14 21:27:59,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:59,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514841898] [2021-06-14 21:27:59,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514841898] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:59,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070899736] [2021-06-14 21:27:59,871 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 21:28:00,550 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 98 check-sat command(s) [2021-06-14 21:28:00,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:28:00,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 328 conjunts are in the unsatisfiable core [2021-06-14 21:28:00,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:28:06,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:28:06,294 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-14 21:28:06,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:28:06,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:28:06,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:28:06,314 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2021-06-14 21:28:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36108 backedges. 252 proven. 35569 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-06-14 21:28:06,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070899736] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:06,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:28:06,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 87] total 118 [2021-06-14 21:28:06,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078455702] [2021-06-14 21:28:06,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 119 states [2021-06-14 21:28:06,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:28:06,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2021-06-14 21:28:06,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=13735, Unknown=0, NotChecked=0, Total=14042 [2021-06-14 21:28:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:06,436 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:28:06,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 119 states, 119 states have (on average 8.445378151260504) internal successors, (1005), 118 states have internal predecessors, (1005), 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 21:28:06,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:06,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:06,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:28:06,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:30,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:30,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:28:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:28:30,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:28:30,698 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:28:30,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:28:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1660505161, now seen corresponding path program 12 times [2021-06-14 21:28:30,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:28:30,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169963874] [2021-06-14 21:28:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:28:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:28:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 41655 backedges. 71 proven. 41253 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-06-14 21:28:33,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:28:33,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169963874] [2021-06-14 21:28:33,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169963874] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:33,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204343123] [2021-06-14 21:28:33,594 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:28:34,435 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 110 check-sat command(s) [2021-06-14 21:28:34,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:28:34,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 284 conjunts are in the unsatisfiable core [2021-06-14 21:28:34,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:28:38,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:28:38,830 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:28:38,831 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:28:38,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:28:38,836 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:28:38,836 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:28:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 41655 backedges. 70 proven. 41247 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-06-14 21:28:38,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204343123] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:38,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:28:38,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 61] total 94 [2021-06-14 21:28:38,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84216412] [2021-06-14 21:28:38,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-06-14 21:28:38,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:28:38,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-06-14 21:28:38,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=8704, Unknown=0, NotChecked=0, Total=8930 [2021-06-14 21:28:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:38,916 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:28:38,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 95 states, 95 states have (on average 11.157894736842104) internal successors, (1060), 94 states have internal predecessors, (1060), 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 21:28:38,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:38,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:38,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:28:38,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:45,154 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:28:45,475 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:28:45,913 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 21:28:46,245 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 21:28:46,635 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 21:28:46,986 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-14 21:28:47,387 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 21:28:47,745 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 21:28:48,166 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-06-14 21:28:48,454 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-06-14 21:28:48,751 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 21:28:49,017 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-14 21:28:49,273 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-14 21:28:49,532 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-14 21:28:49,774 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-14 21:28:50,029 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:28:50,486 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:28:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:28:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:28:54,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-14 21:28:54,010 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:28:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:28:54,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1200673035, now seen corresponding path program 13 times [2021-06-14 21:28:54,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:28:54,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029296556] [2021-06-14 21:28:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:28:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:28:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 45338 backedges. 74 proven. 44918 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-06-14 21:28:57,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:28:57,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029296556] [2021-06-14 21:28:57,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029296556] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:57,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494175539] [2021-06-14 21:28:57,256 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:28:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:28:57,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 298 conjunts are in the unsatisfiable core [2021-06-14 21:28:57,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:29:02,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:29:02,056 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-14 21:29:02,057 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:29:02,061 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:29:02,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:29:02,062 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2021-06-14 21:29:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 45338 backedges. 73 proven. 44912 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-06-14 21:29:02,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494175539] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:02,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:29:02,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 63] total 97 [2021-06-14 21:29:02,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927634121] [2021-06-14 21:29:02,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-06-14 21:29:02,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:29:02,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-06-14 21:29:02,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=9273, Unknown=0, NotChecked=0, Total=9506 [2021-06-14 21:29:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:02,138 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:29:02,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 11.26530612244898) internal successors, (1104), 97 states have internal predecessors, (1104), 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 21:29:02,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:02,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:02,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:02,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:29:02,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:07,244 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-06-14 21:29:07,559 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-14 21:29:07,919 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:29:08,248 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:29:08,627 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 21:29:08,992 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 21:29:09,392 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 21:29:09,759 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-14 21:29:10,196 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 21:29:10,591 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 21:29:11,042 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 21:29:11,443 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-06-14 21:29:11,816 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-06-14 21:29:12,146 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-06-14 21:29:12,443 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 21:29:12,730 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-14 21:29:13,007 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-14 21:29:13,331 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-14 21:29:13,591 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-14 21:29:13,843 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:29:14,103 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:29:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:29:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:29:17,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:29:17,795 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:29:17,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:29:17,795 INFO L82 PathProgramCache]: Analyzing trace with hash 132562099, now seen corresponding path program 14 times [2021-06-14 21:29:17,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:29:17,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462925294] [2021-06-14 21:29:17,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:29:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:29:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 49177 backedges. 77 proven. 48738 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-06-14 21:29:21,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:29:21,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462925294] [2021-06-14 21:29:21,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462925294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:21,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138992870] [2021-06-14 21:29:21,288 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:29:21,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 21:29:21,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:29:21,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 308 conjunts are in the unsatisfiable core [2021-06-14 21:29:21,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:29:26,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:29:26,466 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:29:26,467 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:29:26,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:29:26,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:29:26,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:29:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 49177 backedges. 76 proven. 48732 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-06-14 21:29:26,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138992870] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:26,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:29:26,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 66] total 101 [2021-06-14 21:29:26,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900766339] [2021-06-14 21:29:26,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-06-14 21:29:26,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:29:26,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-06-14 21:29:26,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=10060, Unknown=0, NotChecked=0, Total=10302 [2021-06-14 21:29:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:26,554 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:29:26,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 11.254901960784315) internal successors, (1148), 101 states have internal predecessors, (1148), 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 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:29:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:29:26,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:29:26,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:29:26,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:29:26,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:34,604 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-14 21:29:35,135 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:29:35,577 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:29:36,124 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 21:29:36,580 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 21:29:37,156 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 21:29:37,620 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-14 21:29:38,159 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 21:29:38,635 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 21:29:39,219 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 21:29:39,715 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-14 21:29:40,265 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:29:40,720 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-06-14 21:29:41,118 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-06-14 21:29:41,467 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-06-14 21:29:41,808 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-06-14 21:29:42,134 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 21:29:42,448 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-14 21:29:42,773 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-14 21:29:43,073 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-14 21:29:43,359 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-14 21:29:43,638 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:29:43,907 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-14 21:29:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:29:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:29:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:29:47,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-14 21:29:47,998 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:29:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:29:47,998 INFO L82 PathProgramCache]: Analyzing trace with hash 875297485, now seen corresponding path program 15 times [2021-06-14 21:29:47,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:29:47,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690434720] [2021-06-14 21:29:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:29:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:29:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 66483 backedges. 1 proven. 66050 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2021-06-14 21:29:52,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:29:52,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690434720] [2021-06-14 21:29:52,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690434720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:52,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015925712] [2021-06-14 21:29:52,844 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:29:53,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 136 check-sat command(s) [2021-06-14 21:29:53,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:29:53,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 342 conjunts are in the unsatisfiable core [2021-06-14 21:29:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:29:55,909 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 12 treesize of output 8 [2021-06-14 21:29:55,910 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:29:55,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:29:55,911 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 21:29:55,911 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:4 [2021-06-14 21:29:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 66483 backedges. 446 proven. 12840 refuted. 0 times theorem prover too weak. 53197 trivial. 0 not checked. [2021-06-14 21:29:56,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015925712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:56,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:29:56,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 15] total 94 [2021-06-14 21:29:56,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655969605] [2021-06-14 21:29:56,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-06-14 21:29:56,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:29:56,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-06-14 21:29:56,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=8737, Unknown=0, NotChecked=0, Total=8930 [2021-06-14 21:29:56,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:56,061 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:29:56,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 95 states, 95 states have (on average 10.389473684210527) internal successors, (987), 94 states have internal predecessors, (987), 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 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:29:56,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:30:13,514 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-06-14 21:30:13,974 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 21:30:15,255 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-06-14 21:30:16,502 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:30:16,691 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:30:17,068 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-06-14 21:30:17,347 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:30:17,985 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:30:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2021-06-14 21:30:31,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-14 21:30:31,246 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:30:31,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:30:31,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1082634821, now seen corresponding path program 16 times [2021-06-14 21:30:31,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:30:31,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473040908] [2021-06-14 21:30:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:30:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:30:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 94487 backedges. 406 proven. 93564 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-06-14 21:30:38,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:30:38,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473040908] [2021-06-14 21:30:38,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473040908] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:30:38,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192133330] [2021-06-14 21:30:38,448 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:30:38,905 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 21:30:38,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:30:38,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 428 conjunts are in the unsatisfiable core [2021-06-14 21:30:38,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:30:47,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:30:47,232 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:30:47,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:30:47,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:30:47,237 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:30:47,237 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:30:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 94487 backedges. 405 proven. 93558 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-06-14 21:30:47,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192133330] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:30:47,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:30:47,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 90] total 137 [2021-06-14 21:30:47,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622312797] [2021-06-14 21:30:47,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 138 states [2021-06-14 21:30:47,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:30:47,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-06-14 21:30:47,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=18580, Unknown=0, NotChecked=0, Total=18906 [2021-06-14 21:30:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:30:47,344 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:30:47,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 138 states, 138 states have (on average 11.123188405797102) internal successors, (1535), 137 states have internal predecessors, (1535), 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 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2021-06-14 21:30:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:30:59,350 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-14 21:31:00,335 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:31:01,044 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:31:02,016 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 21:31:02,753 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 21:31:03,715 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 21:31:04,478 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-14 21:31:05,450 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 21:31:06,238 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 21:31:07,250 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 21:31:08,073 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-14 21:31:09,048 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:31:09,864 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-06-14 21:31:10,841 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 21:31:11,687 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-06-14 21:31:12,672 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 21:31:13,519 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-14 21:31:14,512 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 21:31:15,356 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-06-14 21:31:16,313 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 21:31:17,194 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-14 21:31:18,218 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 21:31:19,122 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-06-14 21:31:20,089 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 21:31:21,016 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-14 21:31:21,776 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2021-06-14 21:31:22,490 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-06-14 21:31:23,875 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2021-06-14 21:31:24,563 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-06-14 21:31:25,217 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-14 21:31:25,881 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-06-14 21:31:26,512 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-06-14 21:31:27,122 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-06-14 21:31:27,689 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-06-14 21:31:28,234 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-06-14 21:31:28,780 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-06-14 21:31:29,287 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-06-14 21:31:29,790 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-06-14 21:31:30,268 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-06-14 21:31:30,737 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-06-14 21:31:31,194 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 21:31:31,653 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-14 21:31:32,081 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-14 21:31:32,507 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-14 21:31:32,916 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-14 21:31:33,317 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:31:33,706 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-14 21:31:34,093 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:31:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:31:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:31:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:31:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:31:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2021-06-14 21:31:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-06-14 21:31:39,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-14 21:31:39,634 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:31:39,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:31:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash 461859621, now seen corresponding path program 17 times [2021-06-14 21:31:39,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:31:39,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811541140] [2021-06-14 21:31:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:31:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:31:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 127837 backedges. 1 proven. 127231 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2021-06-14 21:31:49,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:31:49,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811541140] [2021-06-14 21:31:49,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811541140] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:31:49,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918318744] [2021-06-14 21:31:49,482 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:31:51,628 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 189 check-sat command(s) [2021-06-14 21:31:51,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:31:51,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 4144 conjuncts, 500 conjunts are in the unsatisfiable core [2021-06-14 21:31:51,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:32:01,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:32:01,803 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 21:32:01,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:32:01,808 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:32:01,809 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:32:01,809 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2021-06-14 21:32:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 127837 backedges. 0 proven. 127225 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-06-14 21:32:01,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918318744] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:32:01,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:32:01,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 104] total 158 [2021-06-14 21:32:01,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114362557] [2021-06-14 21:32:01,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 159 states [2021-06-14 21:32:01,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:32:01,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2021-06-14 21:32:01,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=375, Invalid=24747, Unknown=0, NotChecked=0, Total=25122 [2021-06-14 21:32:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:32:01,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:32:01,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 159 states, 159 states have (on average 11.169811320754716) internal successors, (1776), 158 states have internal predecessors, (1776), 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 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-06-14 21:32:01,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:32:16,314 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-14 21:32:17,399 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 21:32:18,378 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:32:19,525 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 21:32:20,450 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 21:32:21,649 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 21:32:22,654 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-14 21:32:23,879 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 21:32:24,941 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 21:32:26,219 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 21:32:27,281 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-14 21:32:28,617 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 21:32:29,706 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-06-14 21:32:31,145 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 21:32:32,324 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-06-14 21:32:33,731 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 21:32:34,960 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-14 21:32:36,685 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 21:32:37,987 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-06-14 21:32:39,471 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 21:32:40,690 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-14 21:32:42,161 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 21:32:43,432 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-06-14 21:32:44,910 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 21:32:46,158 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-06-14 21:32:47,582 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 21:32:48,860 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2021-06-14 21:32:50,324 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2021-06-14 21:32:51,685 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 300 [2021-06-14 21:32:53,244 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-14 21:32:54,677 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2021-06-14 21:32:56,057 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2021-06-14 21:32:57,082 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2021-06-14 21:32:58,170 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2021-06-14 21:32:59,205 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-06-14 21:33:00,190 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2021-06-14 21:33:01,164 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-06-14 21:33:02,090 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2021-06-14 21:33:02,981 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-14 21:33:03,874 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2021-06-14 21:33:04,796 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-06-14 21:33:05,641 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2021-06-14 21:33:06,485 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-06-14 21:33:07,314 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-14 21:33:08,105 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-06-14 21:33:08,856 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-06-14 21:33:09,616 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-06-14 21:33:10,331 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-06-14 21:33:11,034 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-06-14 21:33:11,709 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-06-14 21:33:12,360 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-06-14 21:33:13,001 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-06-14 21:33:13,646 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-06-14 21:33:14,249 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-06-14 21:33:14,843 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 21:33:15,149 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-14 21:33:15,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-14 21:33:15,353 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:159) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 45 more [2021-06-14 21:33:15,356 INFO L168 Benchmark]: Toolchain (without parser) took 369381.95 ms. Allocated memory was 180.4 MB in the beginning and 941.6 MB in the end (delta: 761.3 MB). Free memory was 159.4 MB in the beginning and 299.8 MB in the end (delta: -140.4 MB). Peak memory consumption was 621.2 MB. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 180.4 MB. Free memory is still 160.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 180.4 MB. Free memory was 159.3 MB in the beginning and 157.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L168 Benchmark]: Boogie Preprocessor took 21.47 ms. Allocated memory is still 180.4 MB. Free memory was 157.9 MB in the beginning and 156.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L168 Benchmark]: RCFGBuilder took 250.20 ms. Allocated memory is still 180.4 MB. Free memory was 156.7 MB in the beginning and 141.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L168 Benchmark]: TraceAbstraction took 369085.26 ms. Allocated memory was 180.4 MB in the beginning and 941.6 MB in the end (delta: 761.3 MB). Free memory was 140.7 MB in the beginning and 299.8 MB in the end (delta: -159.1 MB). Peak memory consumption was 603.4 MB. Max. memory is 8.0 GB. [2021-06-14 21:33:15,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 180.4 MB. Free memory is still 160.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 180.4 MB. Free memory was 159.3 MB in the beginning and 157.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.47 ms. Allocated memory is still 180.4 MB. Free memory was 157.9 MB in the beginning and 156.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 250.20 ms. Allocated memory is still 180.4 MB. Free memory was 156.7 MB in the beginning and 141.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 369085.26 ms. Allocated memory was 180.4 MB in the beginning and 941.6 MB in the end (delta: 761.3 MB). Free memory was 140.7 MB in the beginning and 299.8 MB in the end (delta: -159.1 MB). Peak memory consumption was 603.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...