/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-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:31:40,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:31:40,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:31:40,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:31:40,515 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-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 21:31:40,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:31:40,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:31:40,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:31:40,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:31:40,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:31:40,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:31:40,531 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:31:40,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:31:40,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:31:40,532 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:31:40,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:31:40,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:31:40,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:31:40,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:31:40,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:31:40,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:31:40,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:31:40,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:31:40,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:31:40,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:31:40,545 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:31:40,545 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:31:40,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:31:40,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:31:40,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:31:40,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:31:40,811 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:31:40,812 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:31:40,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl [2021-06-16 21:31:40,812 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl' [2021-06-16 21:31:40,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:31:40,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:31:40,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:40,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:31:40,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:31:40,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:40,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:31:40,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:31:40,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:31:40,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/1) ... [2021-06-16 21:31:40,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:31:40,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:31:40,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:31:40,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:31:40,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (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 [2021-06-16 21:31:40,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:31:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:31:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:31:40,955 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:31:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:31:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:31:40,955 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:31:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:31:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:31:40,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 21:31:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 21:31:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 21:31:40,958 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:31:41,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:31:41,158 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:31:41,159 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:41 BoogieIcfgContainer [2021-06-16 21:31:41,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:31:41,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:31:41,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:31:41,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:31:41,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:40" (1/2) ... [2021-06-16 21:31:41,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5200307b and model type max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:31:41, skipping insertion in model container [2021-06-16 21:31:41,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:41" (2/2) ... [2021-06-16 21:31:41,164 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array.wvr.bpl [2021-06-16 21:31:41,168 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:31:41,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:31:41,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:31:41,169 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:31:41,197 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-16 21:31:41,212 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 [2021-06-16 21:31:41,274 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:31:41,274 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:31:41,274 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:31:41,274 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:31:41,274 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:31:41,274 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:31:41,275 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:31:41,275 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:31:41,371 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:41,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:41,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-06-16 21:31:41,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:41,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059491674] [2021-06-16 21:31:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:41,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:41,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059491674] [2021-06-16 21:31:41,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059491674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:41,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:41,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:31:41,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734666061] [2021-06-16 21:31:41,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:31:41,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:41,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:31:41,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:31:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:41,550 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:41,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-06-16 21:31:41,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:41,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:31:41,571 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:41,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-06-16 21:31:41,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:41,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620332774] [2021-06-16 21:31:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:41,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:41,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620332774] [2021-06-16 21:31:41,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620332774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:41,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:41,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 21:31:41,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419620643] [2021-06-16 21:31:41,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 21:31:41,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:41,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 21:31:41,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 21:31:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:41,606 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:41,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-06-16 21:31:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:41,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 21:31:41,637 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:41,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:41,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-06-16 21:31:41,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:41,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521726535] [2021-06-16 21:31:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:41,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:41,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521726535] [2021-06-16 21:31:41,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521726535] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:41,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769496390] [2021-06-16 21:31:41,900 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 [2021-06-16 21:31:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:41,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-16 21:31:41,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:42,262 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 16 treesize of output 10 [2021-06-16 21:31:42,264 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:42,268 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 16 treesize of output 10 [2021-06-16 21:31:42,269 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:42,275 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 21 treesize of output 13 [2021-06-16 21:31:42,279 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:42,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:42,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-16 21:31:42,295 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:91, output treesize:15 [2021-06-16 21:31:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:42,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769496390] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:42,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:42,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:42,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915270814] [2021-06-16 21:31:42,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:42,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:42,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:42,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:42,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,350 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:42,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-06-16 21:31:42,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:42,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:42,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:42,723 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:42,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-06-16 21:31:42,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:42,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196666748] [2021-06-16 21:31:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:42,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:42,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196666748] [2021-06-16 21:31:42,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196666748] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:42,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769575780] [2021-06-16 21:31:42,779 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 [2021-06-16 21:31:42,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:42,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:42,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:42,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:42,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:42,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769575780] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:42,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:42,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-16 21:31:42,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695251838] [2021-06-16 21:31:42,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:42,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:42,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:42,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,967 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:42,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-06-16 21:31:42,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:42,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:42,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:43,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:43,355 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,356 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-06-16 21:31:43,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215048368] [2021-06-16 21:31:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:43,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:43,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215048368] [2021-06-16 21:31:43,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215048368] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:43,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082203821] [2021-06-16 21:31:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-16 21:31:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:43,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:43,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082203821] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:43,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:43,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:43,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404805336] [2021-06-16 21:31:43,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 21:31:43,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:43,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 21:31:43,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-16 21:31:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,529 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:43,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2021-06-16 21:31:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:31:43,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:43,812 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,812 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-06-16 21:31:43,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551760359] [2021-06-16 21:31:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:44,279 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-16 21:31:44,421 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-16 21:31:44,580 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:44,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:44,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551760359] [2021-06-16 21:31:44,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551760359] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417636421] [2021-06-16 21:31:44,581 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 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 [2021-06-16 21:31:44,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:44,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:44,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-16 21:31:44,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:45,832 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-06-16 21:31:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:47,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:47,703 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 21:31:47,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 52 [2021-06-16 21:31:47,714 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:47,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:47,808 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:31:47,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 48 [2021-06-16 21:31:47,836 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:49,405 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 344 [2021-06-16 21:31:49,406 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,488 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:31:49,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 37 [2021-06-16 21:31:49,494 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:49,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,585 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:49,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-16 21:31:49,591 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,100 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 333 [2021-06-16 21:31:51,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,185 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:51,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 60 [2021-06-16 21:31:51,209 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,285 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:31:51,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 31 [2021-06-16 21:31:51,288 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:52,693 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 319 [2021-06-16 21:31:52,694 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:52,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:52,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:52,789 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:31:52,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 38 [2021-06-16 21:31:52,794 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:52,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:52,891 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:31:52,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 54 [2021-06-16 21:31:52,902 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:55,606 WARN L205 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 313 DAG size of output: 308 [2021-06-16 21:31:55,607 INFO L628 ElimStorePlain]: treesize reduction 67, result has 96.6 percent of original size [2021-06-16 21:31:55,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:55,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:55,699 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:55,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-16 21:31:55,708 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:55,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:55,790 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:31:55,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 38 [2021-06-16 21:31:55,794 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:57,084 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 299 [2021-06-16 21:31:57,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:57,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,164 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:31:57,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-16 21:31:57,168 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:57,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,205 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:31:57,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 1 [2021-06-16 21:31:57,206 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:58,425 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 287 [2021-06-16 21:31:58,426 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:58,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,495 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:31:58,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 34 [2021-06-16 21:31:58,500 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,572 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:58,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 66 [2021-06-16 21:31:58,593 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:59,733 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 271 [2021-06-16 21:31:59,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,808 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:31:59,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-16 21:31:59,814 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:59,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,848 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:31:59,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 1 [2021-06-16 21:31:59,848 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,865 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 261 DAG size of output: 259 [2021-06-16 21:32:01,866 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-06-16 21:32:01,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,948 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:01,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-16 21:32:01,955 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:02,007 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:02,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 35 [2021-06-16 21:32:02,012 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:02,999 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2021-06-16 21:32:03,000 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,065 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:03,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 39 [2021-06-16 21:32:03,074 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,105 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:32:03,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 1 [2021-06-16 21:32:03,106 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:04,000 WARN L205 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-16 21:32:04,000 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,077 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 21:32:04,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-06-16 21:32:04,090 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:04,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,149 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:32:04,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 48 [2021-06-16 21:32:04,155 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,006 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-06-16 21:32:05,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:05,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,083 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:05,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-16 21:32:05,103 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,148 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:32:05,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 34 [2021-06-16 21:32:05,156 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,760 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2021-06-16 21:32:06,761 INFO L628 ElimStorePlain]: treesize reduction 16, result has 98.8 percent of original size [2021-06-16 21:32:06,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,834 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:06,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-16 21:32:06,846 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,894 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:06,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 40 [2021-06-16 21:32:06,898 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:07,642 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-16 21:32:07,642 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:07,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:07,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:07,704 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:07,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 50 [2021-06-16 21:32:07,715 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:07,758 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:07,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 40 [2021-06-16 21:32:07,765 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,115 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 185 DAG size of output: 181 [2021-06-16 21:32:09,116 INFO L628 ElimStorePlain]: treesize reduction 17, result has 98.7 percent of original size [2021-06-16 21:32:09,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,177 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:32:09,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 54 [2021-06-16 21:32:09,189 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,211 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:32:09,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 1 [2021-06-16 21:32:09,212 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,823 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-16 21:32:09,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:09,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,868 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:09,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2021-06-16 21:32:09,876 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,911 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:09,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 42 [2021-06-16 21:32:09,931 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:10,990 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2021-06-16 21:32:10,991 INFO L628 ElimStorePlain]: treesize reduction 43, result has 96.1 percent of original size [2021-06-16 21:32:11,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 26 xjuncts. [2021-06-16 21:32:11,090 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2177, output treesize:1228 [2021-06-16 21:32:11,299 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 25 [2021-06-16 21:32:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:11,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417636421] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:11,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:11,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-16 21:32:11,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834649933] [2021-06-16 21:32:11,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 21:32:11,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:11,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 21:32:11,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-16 21:32:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:11,360 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:11,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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) [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:11,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:11,781 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-16 21:32:12,057 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-06-16 21:32:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:12,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-16 21:32:12,356 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:12,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-06-16 21:32:12,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:12,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459723215] [2021-06-16 21:32:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:12,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:12,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459723215] [2021-06-16 21:32:12,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459723215] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:12,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563278797] [2021-06-16 21:32:12,435 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 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 [2021-06-16 21:32:12,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-16 21:32:12,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:12,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:12,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:12,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563278797] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:12,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:12,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-16 21:32:12,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708790089] [2021-06-16 21:32:12,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 21:32:12,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:12,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 21:32:12,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-16 21:32:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:12,621 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:12,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:32:12,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:12,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:12,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:12,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:12,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:12,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:12,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:13,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:13,213 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:13,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-06-16 21:32:13,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:13,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551805155] [2021-06-16 21:32:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:32:13,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:13,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551805155] [2021-06-16 21:32:13,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551805155] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:13,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821997408] [2021-06-16 21:32:13,275 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 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 [2021-06-16 21:32:13,301 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:32:13,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:13,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:13,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:32:13,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821997408] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:13,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:13,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-16 21:32:13,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667746807] [2021-06-16 21:32:13,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 21:32:13,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:13,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 21:32:13,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-16 21:32:13,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:13,415 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:13,415 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:13,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:13,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-06-16 21:32:13,741 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:13,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:13,741 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-06-16 21:32:13,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:13,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493803773] [2021-06-16 21:32:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:14,363 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-16 21:32:14,699 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-16 21:32:15,287 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-06-16 21:32:15,849 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-06-16 21:32:16,077 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-16 21:32:16,252 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-06-16 21:32:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:16,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:16,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493803773] [2021-06-16 21:32:16,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493803773] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:16,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647935151] [2021-06-16 21:32:16,440 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 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 [2021-06-16 21:32:16,487 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-16 21:32:16,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:16,488 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-16 21:32:16,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:18,175 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-16 21:32:19,551 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-16 21:32:21,513 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 361 [2021-06-16 21:32:23,136 WARN L205 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-16 21:32:24,771 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-16 21:32:26,218 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 363 [2021-06-16 21:32:27,369 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2021-06-16 21:32:29,029 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-06-16 21:32:29,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:29,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:29,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 22 [2021-06-16 21:32:29,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:29,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,832 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:29,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:32:29,837 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:34,674 WARN L205 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 790 DAG size of output: 635 [2021-06-16 21:32:34,675 INFO L628 ElimStorePlain]: treesize reduction 2064, result has 44.1 percent of original size [2021-06-16 21:32:34,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:34,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:34,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:34,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:34,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:34,706 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:35,926 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 623 [2021-06-16 21:32:35,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:35,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:35,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:35,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:35,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:35,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:35,959 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:37,113 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 611 [2021-06-16 21:32:37,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:37,155 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:38,217 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 599 [2021-06-16 21:32:38,217 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:38,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:38,250 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:39,241 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2021-06-16 21:32:39,242 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:39,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:39,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:32:39,275 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:40,282 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 573 [2021-06-16 21:32:40,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:40,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:40,311 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:41,263 WARN L205 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2021-06-16 21:32:41,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:41,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:41,294 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:42,196 WARN L205 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2021-06-16 21:32:42,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-16 21:32:42,225 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:43,070 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2021-06-16 21:32:43,071 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:43,098 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:43,939 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 522 [2021-06-16 21:32:43,939 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:43,939 INFO L518 ElimStorePlain]: Eliminatee v_prenex_146 vanished before elimination [2021-06-16 21:32:43,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:43,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:43,967 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:44,755 WARN L205 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-06-16 21:32:44,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:44,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-16 21:32:44,784 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:45,554 WARN L205 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-06-16 21:32:45,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:45,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:45,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2021-06-16 21:32:45,582 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:46,346 WARN L205 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 482 [2021-06-16 21:32:46,347 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:46,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:46,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:46,376 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:47,104 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 468 [2021-06-16 21:32:47,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:47,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:47,129 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:47,866 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2021-06-16 21:32:47,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:47,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:47,894 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:48,597 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2021-06-16 21:32:48,597 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:48,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:48,621 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:49,250 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2021-06-16 21:32:49,251 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:49,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:32:49,274 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:49,859 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2021-06-16 21:32:49,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:49,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:49,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:49,883 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:50,447 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2021-06-16 21:32:50,448 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:50,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:50,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:50,469 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:50,999 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-06-16 21:32:51,000 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:51,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:32:51,022 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:51,522 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-06-16 21:32:51,523 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:51,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:51,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:51,547 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:52,031 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2021-06-16 21:32:52,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:52,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:52,052 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:52,508 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2021-06-16 21:32:52,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:52,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:52,528 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:52,958 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2021-06-16 21:32:52,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:52,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:52,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:52,981 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:53,387 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-06-16 21:32:53,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:53,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:53,406 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:53,784 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2021-06-16 21:32:53,784 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:53,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:53,803 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,160 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2021-06-16 21:32:54,161 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:54,179 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,516 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2021-06-16 21:32:54,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:54,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:54,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:32:54,534 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,851 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-16 21:32:54,852 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:32:54,869 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:55,166 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-16 21:32:55,167 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:55,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:55,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-16 21:32:55,184 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:55,465 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-16 21:32:55,465 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:55,483 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-06-16 21:32:55,484 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 96 variables, input treesize:3792, output treesize:71 [2021-06-16 21:32:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:55,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647935151] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:55,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:55,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-16 21:32:55,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127835225] [2021-06-16 21:32:55,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-16 21:32:55,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:55,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-16 21:32:55,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-16 21:32:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:55,617 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:55,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:32:55,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:55,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:55,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:55,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:55,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:55,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:55,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:55,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:55,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:56,065 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 33 [2021-06-16 21:32:56,477 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 41 [2021-06-16 21:32:56,972 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2021-06-16 21:32:57,175 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2021-06-16 21:32:57,515 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 58 [2021-06-16 21:32:57,812 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2021-06-16 21:32:58,723 WARN L205 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 125 [2021-06-16 21:33:00,837 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 206 DAG size of output: 121 [2021-06-16 21:33:04,231 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 513 DAG size of output: 160 [2021-06-16 21:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:33:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:33:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:33:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 21:33:05,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-06-16 21:33:05,244 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:33:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:33:05,244 INFO L82 PathProgramCache]: Analyzing trace with hash 440189797, now seen corresponding path program 6 times [2021-06-16 21:33:05,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:33:05,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103250262] [2021-06-16 21:33:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:33:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:33:05,862 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-06-16 21:33:06,273 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2021-06-16 21:33:06,705 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2021-06-16 21:33:07,290 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-06-16 21:33:07,690 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2021-06-16 21:33:07,906 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2021-06-16 21:33:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:33:08,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:33:08,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103250262] [2021-06-16 21:33:08,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103250262] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:33:08,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691351144] [2021-06-16 21:33:08,266 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 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 [2021-06-16 21:33:08,319 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 21:33:08,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:33:08,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-16 21:33:08,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:33:08,950 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-06-16 21:33:09,142 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-16 21:33:12,361 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 168 [2021-06-16 21:33:16,111 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification that was a NOOP. DAG size: 669 [2021-06-16 21:33:21,492 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-16 21:33:25,752 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 679 [2021-06-16 21:33:30,258 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification that was a NOOP. DAG size: 681 [2021-06-16 21:33:34,445 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification that was a NOOP. DAG size: 682 [2021-06-16 21:33:38,755 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 685 [2021-06-16 21:33:42,047 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 684 [2021-06-16 21:33:43,663 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1064 DAG size of output: 1064 [2021-06-16 21:33:43,875 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-16 21:33:44,004 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-16 21:33:52,264 WARN L205 SmtUtils]: Spent 6.86 s on a formula simplification. DAG size of input: 1447 DAG size of output: 1075 [2021-06-16 21:33:56,481 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 1077 [2021-06-16 21:34:02,390 INFO L446 ElimStorePlain]: Different costs {11=[v_prenex_349, v_prenex_328, v_prenex_296, v_prenex_342, v_prenex_298, v_prenex_331, v_prenex_332, v_prenex_333, v_prenex_357, v_prenex_337], 15=[v_prenex_350, v_prenex_295, v_prenex_341, v_prenex_321, v_prenex_354, v_prenex_310, v_prenex_322, v_prenex_355, v_prenex_311, v_prenex_300, v_prenex_344, v_prenex_301, v_prenex_334, v_prenex_346, v_prenex_335, v_prenex_314, v_prenex_347, v_prenex_348, v_prenex_317, v_prenex_307, v_prenex_308], 18=[v_prenex_340, v_prenex_320, v_prenex_343, v_prenex_323, v_prenex_345, v_prenex_324, v_prenex_302, v_prenex_325, v_prenex_303, v_prenex_326, v_prenex_304, v_prenex_316, v_prenex_338, v_prenex_318, v_prenex_319, v_prenex_351, v_prenex_352, v_prenex_330, v_prenex_297, v_prenex_353, v_prenex_299, v_prenex_312, v_prenex_356, v_prenex_313, v_prenex_336, v_prenex_315, v_prenex_305, v_prenex_327, v_prenex_306, A, v_prenex_329, v_prenex_309], 21=[v_prenex_339]} [2021-06-16 21:34:02,588 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-06-16 21:34:03,078 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:34:03,080 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:34:03,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-16 21:34:03,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:03,955 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:34:03,955 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:34:03,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 76 [2021-06-16 21:34:03,958 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:31,327 WARN L205 SmtUtils]: Spent 27.37 s on a formula simplification that was a NOOP. DAG size: 1817 [2021-06-16 21:34:31,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:34:31,695 INFO L244 Elim1Store]: Index analysis took 265 ms [2021-06-16 21:34:32,113 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:34:32,113 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:34:32,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-16 21:34:32,338 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:32,538 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-06-16 21:34:33,307 WARN L205 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:34:33,307 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:34:33,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:34:33,320 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:35:28,054 WARN L205 SmtUtils]: Spent 54.73 s on a formula simplification. DAG size of input: 1822 DAG size of output: 1801 [2021-06-16 21:35:28,057 INFO L628 ElimStorePlain]: treesize reduction 95, result has 99.0 percent of original size [2021-06-16 21:35:28,422 INFO L244 Elim1Store]: Index analysis took 274 ms [2021-06-16 21:35:29,047 WARN L205 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:35:29,047 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:35:29,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-16 21:35:29,049 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:35:29,294 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-06-16 21:35:29,882 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:35:29,883 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:35:29,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:35:29,893 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:36:25,885 WARN L205 SmtUtils]: Spent 55.99 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1797 [2021-06-16 21:36:25,888 INFO L628 ElimStorePlain]: treesize reduction 14, result has 99.9 percent of original size [2021-06-16 21:36:26,206 INFO L244 Elim1Store]: Index analysis took 231 ms [2021-06-16 21:36:26,632 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:36:26,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:36:26,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-16 21:36:27,024 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:36:27,252 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-06-16 21:36:27,868 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:36:27,868 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:36:27,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:36:27,907 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:37:24,918 WARN L205 SmtUtils]: Spent 57.01 s on a formula simplification. DAG size of input: 1839 DAG size of output: 1780 [2021-06-16 21:37:24,921 INFO L628 ElimStorePlain]: treesize reduction 411, result has 95.9 percent of original size [2021-06-16 21:37:25,173 INFO L244 Elim1Store]: Index analysis took 166 ms [2021-06-16 21:37:25,732 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:37:25,732 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:37:25,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:37:25,769 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:37:26,686 WARN L205 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:37:26,687 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:37:26,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-16 21:37:26,689 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:23,208 WARN L205 SmtUtils]: Spent 56.52 s on a formula simplification. DAG size of input: 1783 DAG size of output: 1777 [2021-06-16 21:38:23,211 INFO L628 ElimStorePlain]: treesize reduction 40, result has 99.6 percent of original size [2021-06-16 21:38:23,429 INFO L244 Elim1Store]: Index analysis took 135 ms [2021-06-16 21:38:23,827 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:38:23,827 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:38:23,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 41 treesize of output 89 [2021-06-16 21:38:23,847 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:24,364 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:38:24,364 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:38:24,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 46 treesize of output 76 [2021-06-16 21:38:24,368 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:52,112 WARN L205 SmtUtils]: Spent 27.74 s on a formula simplification that was a NOOP. DAG size: 1773 [2021-06-16 21:38:52,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:38:52,367 INFO L244 Elim1Store]: Index analysis took 166 ms [2021-06-16 21:38:52,899 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:38:52,899 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:38:52,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-16 21:38:52,902 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:53,757 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:38:53,758 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:38:53,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:38:53,792 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:39:47,714 WARN L205 SmtUtils]: Spent 53.92 s on a formula simplification. DAG size of input: 1772 DAG size of output: 1768 [2021-06-16 21:39:47,717 INFO L628 ElimStorePlain]: treesize reduction 34, result has 99.6 percent of original size [2021-06-16 21:39:47,962 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-06-16 21:39:48,496 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:39:48,497 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:39:48,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-16 21:39:48,533 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:39:49,100 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:39:49,100 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:39:49,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 76 [2021-06-16 21:39:49,103 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:40:43,880 WARN L205 SmtUtils]: Spent 54.77 s on a formula simplification. DAG size of input: 1766 DAG size of output: 1762 [2021-06-16 21:40:43,883 INFO L628 ElimStorePlain]: treesize reduction 30, result has 99.7 percent of original size [2021-06-16 21:40:44,149 INFO L244 Elim1Store]: Index analysis took 176 ms [2021-06-16 21:40:44,502 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:40:44,503 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:40:44,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 116 [2021-06-16 21:40:44,787 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:40:45,486 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:40:45,487 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:40:45,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-16 21:40:45,498 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:41:39,923 WARN L205 SmtUtils]: Spent 54.42 s on a formula simplification. DAG size of input: 1769 DAG size of output: 1745 [2021-06-16 21:41:39,926 INFO L628 ElimStorePlain]: treesize reduction 138, result has 98.6 percent of original size [2021-06-16 21:41:40,180 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-06-16 21:41:40,655 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:41:40,655 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:41:40,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:41:40,676 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:41:40,892 INFO L244 Elim1Store]: Index analysis took 121 ms [2021-06-16 21:41:41,207 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:41:41,207 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:41:41,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-16 21:41:41,641 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:42:36,735 WARN L205 SmtUtils]: Spent 55.09 s on a formula simplification. DAG size of input: 1755 DAG size of output: 1728 [2021-06-16 21:42:36,739 INFO L628 ElimStorePlain]: treesize reduction 152, result has 98.4 percent of original size [2021-06-16 21:42:36,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:36,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:37,005 INFO L244 Elim1Store]: Index analysis took 178 ms [2021-06-16 21:42:37,470 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:42:37,470 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:42:37,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-16 21:42:37,473 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:42:37,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:37,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:37,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:37,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:37,679 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-06-16 21:42:38,211 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:42:38,211 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:42:38,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-16 21:42:38,246 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:42:53,929 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new [2021-06-16 21:42:53,931 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-16 21:42:54,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-06-16 21:42:54,133 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new 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.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:238) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:307) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:100) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:561) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) 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:363) 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$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 56 more [2021-06-16 21:42:54,136 INFO L168 Benchmark]: Toolchain (without parser) took 673301.69 ms. Allocated memory was 176.2 MB in the beginning and 414.2 MB in the end (delta: 238.0 MB). Free memory was 157.7 MB in the beginning and 158.0 MB in the end (delta: -278.0 kB). Peak memory consumption was 265.9 MB. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 158.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.97 ms. Allocated memory is still 176.2 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L168 Benchmark]: Boogie Preprocessor took 19.36 ms. Allocated memory is still 176.2 MB. Free memory was 156.1 MB in the beginning and 155.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L168 Benchmark]: RCFGBuilder took 281.42 ms. Allocated memory is still 176.2 MB. Free memory was 155.0 MB in the beginning and 142.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L168 Benchmark]: TraceAbstraction took 672975.45 ms. Allocated memory was 176.2 MB in the beginning and 414.2 MB in the end (delta: 238.0 MB). Free memory was 141.8 MB in the beginning and 158.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 249.1 MB. Max. memory is 8.0 GB. [2021-06-16 21:42:54,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 158.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.97 ms. Allocated memory is still 176.2 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.36 ms. Allocated memory is still 176.2 MB. Free memory was 156.1 MB in the beginning and 155.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 281.42 ms. Allocated memory is still 176.2 MB. Free memory was 155.0 MB in the beginning and 142.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 672975.45 ms. Allocated memory was 176.2 MB in the beginning and 414.2 MB in the end (delta: 238.0 MB). Free memory was 141.8 MB in the beginning and 158.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 249.1 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new : 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...