/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-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:31:41,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:31:41,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:31:41,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:31:41,251 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 21:31:41,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:31:41,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:31:41,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:31:41,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:31:41,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:31:41,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:31:41,306 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:31:41,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:31:41,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:31:41,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:31:41,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:31:41,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:31:41,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:31:41,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:31:41,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:31:41,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:31:41,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:31:41,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:31:41,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:31:41,311 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:31:41,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:31:41,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:31:41,311 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:31:41,311 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:31:41,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:31:41,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:31:41,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:31:41,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:31:41,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:31:41,626 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:31:41,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl [2021-06-16 21:31:41,627 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl' [2021-06-16 21:31:41,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:31:41,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:31:41,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:41,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:31:41,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:31:41,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:41,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:31:41,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:31:41,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:31:41,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/1) ... [2021-06-16 21:31:41,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:31:41,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:31:41,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:31:41,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:31:41,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (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 21:31:41,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:31:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:31:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:31:41,765 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:31:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:31:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:31:41,765 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:31:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:31:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:31:41,767 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 21:31:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 21:31:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 21:31:41,768 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 21:31:41,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:31:41,941 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:31:41,943 INFO L202 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:41 BoogieIcfgContainer [2021-06-16 21:31:41,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:31:41,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:31:41,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:31:41,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:31:41,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:41" (1/2) ... [2021-06-16 21:31:41,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea24e63 and model type max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:31:41, skipping insertion in model container [2021-06-16 21:31:41,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:41" (2/2) ... [2021-06-16 21:31:41,950 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun-alt.wvr.bpl [2021-06-16 21:31:41,955 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:31:41,955 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:31:41,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:31:41,956 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:31:42,025 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-16 21:31:42,044 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 21:31:42,086 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:31:42,086 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:31:42,086 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:31:42,086 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:31:42,087 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:31:42,087 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:31:42,087 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:31:42,087 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:31:42,190 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:42,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:42,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-06-16 21:31:42,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:42,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215552204] [2021-06-16 21:31:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:42,388 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 21:31:42,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:42,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215552204] [2021-06-16 21:31:42,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215552204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:42,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:42,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:31:42,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021964209] [2021-06-16 21:31:42,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:31:42,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:42,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:31:42,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:31:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,433 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:42,435 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 21:31:42,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:31:42,484 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:42,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-06-16 21:31:42,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:42,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238023995] [2021-06-16 21:31:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:42,529 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 21:31:42,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:42,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238023995] [2021-06-16 21:31:42,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238023995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:42,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:42,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 21:31:42,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135559084] [2021-06-16 21:31:42,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 21:31:42,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:42,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 21:31:42,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 21:31:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,532 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:42,533 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 21:31:42,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:42,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 21:31:42,571 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-06-16 21:31:42,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:42,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623247111] [2021-06-16 21:31:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:42,931 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 21:31:42,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:42,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623247111] [2021-06-16 21:31:42,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623247111] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:42,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363821689] [2021-06-16 21:31:42,932 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 21:31:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:42,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-16 21:31:43,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:43,348 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 21:31:43,350 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:43,353 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 21:31:43,355 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:43,357 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 21:31:43,361 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:43,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:43,376 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 21:31:43,376 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:91, output treesize:15 [2021-06-16 21:31:43,426 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 21:31:43,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363821689] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:43,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:43,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:43,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349623837] [2021-06-16 21:31:43,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:43,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:43,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:43,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,429 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:43,429 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 21:31:43,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:43,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:43,817 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-06-16 21:31:43,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328107092] [2021-06-16 21:31:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,890 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 21:31:43,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:43,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328107092] [2021-06-16 21:31:43,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328107092] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:43,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278302619] [2021-06-16 21:31:43,891 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 21:31:43,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:43,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:43,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:43,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:44,044 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 21:31:44,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278302619] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:44,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-16 21:31:44,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495436592] [2021-06-16 21:31:44,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:44,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:44,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:44,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,053 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:44,053 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 21:31:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:44,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:44,449 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:44,449 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-06-16 21:31:44,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:44,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425430653] [2021-06-16 21:31:44,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:44,519 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 21:31:44,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:44,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425430653] [2021-06-16 21:31:44,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425430653] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009625878] [2021-06-16 21:31:44,520 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 21:31:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:44,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:44,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:44,683 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 21:31:44,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009625878] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:44,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:44,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978897878] [2021-06-16 21:31:44,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 21:31:44,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:44,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 21:31:44,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-16 21:31:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,686 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:44,686 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 21:31:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:44,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:31:44,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:44,999 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:44,999 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-06-16 21:31:44,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:44,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059288326] [2021-06-16 21:31:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:45,518 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-16 21:31:45,679 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-16 21:31:45,861 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 21:31:45,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:45,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059288326] [2021-06-16 21:31:45,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059288326] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:45,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184291233] [2021-06-16 21:31:45,861 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 21:31:45,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:45,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:45,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-16 21:31:45,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:47,409 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-06-16 21:31:49,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,683 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 21:31:49,684 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 21:31:49,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:49,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,811 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:31:49,812 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 21:31:49,822 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,294 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 344 [2021-06-16 21:31:51,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:51,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,396 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:31:51,397 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 21:31:51,410 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,513 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:51,513 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 21:31:51,518 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:52,978 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 333 [2021-06-16 21:31:52,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:53,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:53,071 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 21:31:53,103 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:53,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,174 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:31:53,174 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 21:31:53,188 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:54,590 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 319 [2021-06-16 21:31:54,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:54,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:54,672 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:31:54,673 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 21:31:54,675 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:54,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:54,776 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:31:54,776 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 21:31:54,790 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:57,478 WARN L205 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 313 DAG size of output: 308 [2021-06-16 21:31:57,479 INFO L628 ElimStorePlain]: treesize reduction 67, result has 96.6 percent of original size [2021-06-16 21:31:57,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,579 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:57,579 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 21:31:57,590 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:57,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:57,652 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:31:57,652 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 21:31:57,656 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:58,935 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 299 [2021-06-16 21:31:58,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:58,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,035 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:31:59,036 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 21:31:59,040 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,081 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:31:59,081 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 21:31:59,082 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:00,202 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 287 [2021-06-16 21:32:00,203 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:00,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:00,278 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:32:00,278 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 21:32:00,293 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:00,370 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:00,370 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 21:32:00,401 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,519 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 271 [2021-06-16 21:32:01,519 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:01,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,622 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:01,622 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 21:32:01,641 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,676 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:32:01,677 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 21:32:01,677 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:03,693 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 261 DAG size of output: 259 [2021-06-16 21:32:03,694 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-06-16 21:32:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,769 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:03,769 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 21:32:03,776 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:03,848 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:03,848 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 35 treesize of output 35 [2021-06-16 21:32:03,854 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:04,780 WARN L205 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2021-06-16 21:32:04,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,863 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:04,864 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 21:32:04,869 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:04,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:04,897 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:32:04,897 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 21:32:04,898 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,794 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-16 21:32:05,794 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:05,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,873 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 21:32:05,873 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 21:32:05,885 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,943 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:32:05,943 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 21:32:05,960 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,781 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-06-16 21:32:06,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:06,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,841 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:06,841 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 21:32:06,847 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,893 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:32:06,893 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 21:32:06,895 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:08,466 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2021-06-16 21:32:08,467 INFO L628 ElimStorePlain]: treesize reduction 16, result has 98.8 percent of original size [2021-06-16 21:32:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,537 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:08,537 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 21:32:08,545 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:08,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,589 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:08,590 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 21:32:08,593 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,305 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-16 21:32:09,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,367 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:09,368 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 21:32:09,382 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:09,425 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:09,425 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 21:32:09,445 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:10,786 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 185 DAG size of output: 181 [2021-06-16 21:32:10,787 INFO L628 ElimStorePlain]: treesize reduction 17, result has 98.7 percent of original size [2021-06-16 21:32:10,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,846 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:32:10,846 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 21:32:10,859 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,888 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-16 21:32:10,888 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 21:32:10,889 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:11,481 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-16 21:32:11,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,526 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:11,526 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 21:32:11,528 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:11,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,562 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:11,562 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 21:32:11,570 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:12,601 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2021-06-16 21:32:12,602 INFO L628 ElimStorePlain]: treesize reduction 43, result has 96.1 percent of original size [2021-06-16 21:32:12,723 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 21:32:12,723 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2177, output treesize:1228 [2021-06-16 21:32:12,957 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 25 [2021-06-16 21:32:13,021 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 21:32:13,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184291233] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:13,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:13,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-16 21:32:13,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104571358] [2021-06-16 21:32:13,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 21:32:13,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:13,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 21:32:13,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-16 21:32:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:13,023 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:13,024 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 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:13,442 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-16 21:32:13,717 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:13,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-16 21:32:13,998 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:13,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-06-16 21:32:13,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:13,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026853059] [2021-06-16 21:32:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:14,081 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 21:32:14,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:14,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026853059] [2021-06-16 21:32:14,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026853059] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:14,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373309371] [2021-06-16 21:32:14,082 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 21:32:14,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-16 21:32:14,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:14,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:14,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:14,282 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 21:32:14,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373309371] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:14,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:14,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-16 21:32:14,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292084613] [2021-06-16 21:32:14,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 21:32:14,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:14,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 21:32:14,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-16 21:32:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:14,285 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:14,285 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 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:14,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:14,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:14,910 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:14,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-06-16 21:32:14,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:14,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422626749] [2021-06-16 21:32:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:14,997 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 21:32:14,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:14,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422626749] [2021-06-16 21:32:14,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422626749] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:14,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309898494] [2021-06-16 21:32:14,997 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 21:32:15,031 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:32:15,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:15,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:15,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:15,151 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 21:32:15,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309898494] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:15,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:15,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-16 21:32:15,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350259641] [2021-06-16 21:32:15,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 21:32:15,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:15,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 21:32:15,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-16 21:32:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:15,153 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:15,153 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 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:15,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:15,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-06-16 21:32:15,493 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:15,493 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-06-16 21:32:15,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:15,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64940482] [2021-06-16 21:32:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:16,258 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-16 21:32:16,605 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-16 21:32:17,216 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-06-16 21:32:17,795 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-06-16 21:32:18,060 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-16 21:32:18,228 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-06-16 21:32:18,424 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 21:32:18,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:18,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64940482] [2021-06-16 21:32:18,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64940482] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:18,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903196654] [2021-06-16 21:32:18,425 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 21:32:18,509 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-16 21:32:18,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:18,510 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-16 21:32:18,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:20,412 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 117 [2021-06-16 21:32:21,813 WARN L205 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2021-06-16 21:32:23,964 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 361 [2021-06-16 21:32:25,613 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-16 21:32:27,361 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-16 21:32:28,886 WARN L205 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-06-16 21:32:30,167 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2021-06-16 21:32:31,873 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-06-16 21:32:32,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:32,698 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 21:32:32,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:32,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:32,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:32,754 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 21:32:32,754 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:37,565 WARN L205 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 790 DAG size of output: 635 [2021-06-16 21:32:37,566 INFO L628 ElimStorePlain]: treesize reduction 2064, result has 44.1 percent of original size [2021-06-16 21:32:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:37,598 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 21:32:37,600 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:38,725 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 623 [2021-06-16 21:32:38,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:38,753 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 21:32:38,755 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:39,832 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 611 [2021-06-16 21:32:39,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:39,866 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 21:32:39,868 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:40,882 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 599 [2021-06-16 21:32:40,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:40,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:40,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 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 21:32:40,913 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:41,888 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2021-06-16 21:32:41,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:41,922 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 21:32:41,924 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:42,881 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2021-06-16 21:32:42,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:42,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:42,912 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 21:32:42,914 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:43,856 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2021-06-16 21:32:43,856 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:43,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:43,887 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 21:32:43,889 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:44,782 WARN L205 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2021-06-16 21:32:44,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:44,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:44,811 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 21:32:44,813 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:45,633 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2021-06-16 21:32:45,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:45,658 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 21:32:45,659 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:46,445 WARN L205 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 522 [2021-06-16 21:32:46,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:46,446 INFO L518 ElimStorePlain]: Eliminatee v_prenex_146 vanished before elimination [2021-06-16 21:32:46,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:46,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:46,478 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 21:32:46,483 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:47,240 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-06-16 21:32:47,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:47,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:47,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:47,265 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 21:32:47,268 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:48,011 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-06-16 21:32:48,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:48,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:48,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,035 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 21:32:48,037 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:48,774 WARN L205 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 482 [2021-06-16 21:32:48,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:48,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:48,809 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 21:32:48,810 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:49,480 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 468 [2021-06-16 21:32:49,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:49,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:49,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:49,503 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 21:32:49,504 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:50,176 WARN L205 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2021-06-16 21:32:50,177 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:50,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:50,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,199 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 21:32:50,201 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:50,834 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2021-06-16 21:32:50,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:50,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:50,857 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 21:32:50,858 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:51,459 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2021-06-16 21:32:51,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:51,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:51,480 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 21:32:51,482 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:52,041 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2021-06-16 21:32:52,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:52,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,063 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 21:32:52,065 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:52,615 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2021-06-16 21:32:52,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:52,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:52,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:52,639 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 21:32:52,653 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:53,303 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-06-16 21:32:53,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:53,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,322 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 21:32:53,324 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:53,802 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-06-16 21:32:53,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:53,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:53,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:53,822 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 21:32:53,825 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,289 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2021-06-16 21:32:54,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,308 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 21:32:54,309 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,739 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2021-06-16 21:32:54,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,757 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 21:32:54,765 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:55,177 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2021-06-16 21:32:55,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:55,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,199 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 21:32:55,201 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:55,598 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-06-16 21:32:55,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:55,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:55,616 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 21:32:55,618 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:55,990 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2021-06-16 21:32:55,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,006 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 21:32:56,008 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:56,360 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2021-06-16 21:32:56,360 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,378 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 21:32:56,380 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:56,705 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2021-06-16 21:32:56,705 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:56,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:56,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:56,721 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 21:32:56,723 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:57,031 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-16 21:32:57,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,045 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 21:32:57,047 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:57,340 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-16 21:32:57,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:57,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:57,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:57,358 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 21:32:57,362 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:57,634 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-16 21:32:57,635 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:57,668 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 21:32:57,668 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 96 variables, input treesize:3792, output treesize:71 [2021-06-16 21:32:57,806 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 21:32:57,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903196654] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:57,806 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:57,806 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-16 21:32:57,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133671005] [2021-06-16 21:32:57,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-16 21:32:57,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:57,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-16 21:32:57,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-16 21:32:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:57,808 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:57,808 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 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:57,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:57,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:57,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:57,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:58,383 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 33 [2021-06-16 21:32:58,792 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 41 [2021-06-16 21:32:59,314 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2021-06-16 21:32:59,539 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2021-06-16 21:32:59,893 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 58 [2021-06-16 21:33:00,177 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2021-06-16 21:33:01,133 WARN L205 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 125 [2021-06-16 21:33:03,242 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 206 DAG size of output: 121 [2021-06-16 21:33:06,721 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 513 DAG size of output: 160 [2021-06-16 21:33:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 21:33:07,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-06-16 21:33:07,757 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:33:07,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:33:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash 440189797, now seen corresponding path program 6 times [2021-06-16 21:33:07,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:33:07,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383096630] [2021-06-16 21:33:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:33:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:33:08,471 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-06-16 21:33:08,876 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2021-06-16 21:33:09,324 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2021-06-16 21:33:09,995 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-06-16 21:33:10,372 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2021-06-16 21:33:10,578 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2021-06-16 21:33:10,931 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 21:33:10,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:33:10,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383096630] [2021-06-16 21:33:10,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383096630] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:33:10,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710122103] [2021-06-16 21:33:10,931 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 21:33:10,990 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 21:33:10,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:33:10,991 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-16 21:33:10,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:33:11,686 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-06-16 21:33:11,882 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-16 21:33:15,089 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 168 [2021-06-16 21:33:18,907 WARN L205 SmtUtils]: Spent 2.91 s on a formula simplification that was a NOOP. DAG size: 669 [2021-06-16 21:33:24,454 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-16 21:33:28,823 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 679 [2021-06-16 21:33:33,502 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 681 [2021-06-16 21:33:37,740 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification that was a NOOP. DAG size: 682 [2021-06-16 21:33:42,081 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification that was a NOOP. DAG size: 685 [2021-06-16 21:33:45,334 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 684 [2021-06-16 21:33:47,008 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1064 DAG size of output: 1064 [2021-06-16 21:33:47,227 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-16 21:33:47,362 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-16 21:33:55,674 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 1447 DAG size of output: 1075 [2021-06-16 21:33:59,933 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 1077 [2021-06-16 21:34:05,845 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 21:34:06,079 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-06-16 21:34:06,618 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:34:06,619 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:34:06,619 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 21:34:06,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:07,410 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:34:07,411 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:34:07,411 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 21:34:07,413 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:35,837 WARN L205 SmtUtils]: Spent 28.42 s on a formula simplification that was a NOOP. DAG size: 1817 [2021-06-16 21:34:35,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:34:36,169 INFO L244 Elim1Store]: Index analysis took 244 ms [2021-06-16 21:34:36,485 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:34:36,485 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:34:36,486 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 21:34:36,713 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:34:36,913 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-06-16 21:34:37,479 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:34:37,479 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:34:37,480 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 21:34:37,492 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:35:33,355 WARN L205 SmtUtils]: Spent 55.86 s on a formula simplification. DAG size of input: 1822 DAG size of output: 1801 [2021-06-16 21:35:33,358 INFO L628 ElimStorePlain]: treesize reduction 95, result has 99.0 percent of original size [2021-06-16 21:35:33,825 INFO L244 Elim1Store]: Index analysis took 375 ms [2021-06-16 21:35:34,338 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:35:34,338 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:35:34,339 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 21:35:34,341 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:35:34,561 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-06-16 21:35:35,154 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:35:35,155 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:35:35,155 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 21:35:35,165 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:36:31,221 WARN L205 SmtUtils]: Spent 56.05 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1797 [2021-06-16 21:36:31,224 INFO L628 ElimStorePlain]: treesize reduction 14, result has 99.9 percent of original size [2021-06-16 21:36:31,513 INFO L244 Elim1Store]: Index analysis took 202 ms [2021-06-16 21:36:32,034 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:36:32,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:36:32,035 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 21:36:32,461 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:36:33,322 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:36:33,323 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:36:33,323 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 21:36:33,371 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:37:29,776 WARN L205 SmtUtils]: Spent 56.40 s on a formula simplification. DAG size of input: 1839 DAG size of output: 1780 [2021-06-16 21:37:29,780 INFO L628 ElimStorePlain]: treesize reduction 411, result has 95.9 percent of original size [2021-06-16 21:37:30,211 INFO L244 Elim1Store]: Index analysis took 346 ms [2021-06-16 21:37:30,716 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:37:30,717 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:37:30,717 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 21:37:30,755 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:37:31,359 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:37:31,359 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:37:31,360 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 21:37:31,362 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:28,921 WARN L205 SmtUtils]: Spent 57.56 s on a formula simplification. DAG size of input: 1783 DAG size of output: 1777 [2021-06-16 21:38:28,925 INFO L628 ElimStorePlain]: treesize reduction 40, result has 99.6 percent of original size [2021-06-16 21:38:29,151 INFO L244 Elim1Store]: Index analysis took 142 ms [2021-06-16 21:38:29,512 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:38:29,512 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:38:29,512 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 21:38:29,532 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:29,724 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-06-16 21:38:30,115 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:38:30,115 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:38:30,116 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 21:38:30,119 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:57,320 WARN L205 SmtUtils]: Spent 27.20 s on a formula simplification that was a NOOP. DAG size: 1773 [2021-06-16 21:38:57,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:38:57,614 INFO L244 Elim1Store]: Index analysis took 208 ms [2021-06-16 21:38:58,218 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:38:58,218 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:38:58,218 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 21:38:58,221 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:38:58,411 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-06-16 21:38:58,846 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:38:58,847 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:38:58,847 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 21:38:58,887 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:39:54,198 WARN L205 SmtUtils]: Spent 55.31 s on a formula simplification. DAG size of input: 1772 DAG size of output: 1768 [2021-06-16 21:39:54,201 INFO L628 ElimStorePlain]: treesize reduction 34, result has 99.6 percent of original size [2021-06-16 21:39:54,488 INFO L244 Elim1Store]: Index analysis took 201 ms [2021-06-16 21:39:55,003 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:39:55,004 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:39:55,004 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 21:39:55,025 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:39:55,793 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:39:55,793 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:39:55,793 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 21:39:55,796 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:40:53,117 WARN L205 SmtUtils]: Spent 57.32 s on a formula simplification. DAG size of input: 1766 DAG size of output: 1762 [2021-06-16 21:40:53,121 INFO L628 ElimStorePlain]: treesize reduction 30, result has 99.7 percent of original size [2021-06-16 21:40:53,387 INFO L244 Elim1Store]: Index analysis took 180 ms [2021-06-16 21:40:53,828 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:40:53,829 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:40:53,829 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 21:40:54,094 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-06-16 21:40:54,159 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:40:54,349 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-06-16 21:40:54,828 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:40:54,829 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:40:54,829 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 21:40:54,840 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:41:49,490 WARN L205 SmtUtils]: Spent 54.65 s on a formula simplification. DAG size of input: 1769 DAG size of output: 1745 [2021-06-16 21:41:49,494 INFO L628 ElimStorePlain]: treesize reduction 138, result has 98.6 percent of original size [2021-06-16 21:41:49,768 INFO L244 Elim1Store]: Index analysis took 184 ms [2021-06-16 21:41:50,257 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:41:50,257 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:41:50,258 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 21:41:50,278 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:41:50,843 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-16 21:41:50,843 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:41:50,844 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 21:41:51,278 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:42:48,141 WARN L205 SmtUtils]: Spent 56.86 s on a formula simplification. DAG size of input: 1755 DAG size of output: 1728 [2021-06-16 21:42:48,144 INFO L628 ElimStorePlain]: treesize reduction 152, result has 98.4 percent of original size [2021-06-16 21:42:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:48,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:48,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:48,398 INFO L244 Elim1Store]: Index analysis took 168 ms [2021-06-16 21:42:48,992 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-16 21:42:48,996 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-16 21:42:48,997 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 21:42:49,000 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:42:49,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:49,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:42:49,603 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-16 21:42:49,603 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-16 21:42:49,603 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 21:42:49,638 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:43:19,451 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 21:43:19,453 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-16 21:43:19,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-06-16 21:43:19,654 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:621) 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:393) 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:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) 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 21:43:19,660 INFO L168 Benchmark]: Toolchain (without parser) took 698006.77 ms. Allocated memory was 202.4 MB in the beginning and 426.8 MB in the end (delta: 224.4 MB). Free memory was 183.8 MB in the beginning and 295.7 MB in the end (delta: -111.9 MB). Peak memory consumption was 271.2 MB. Max. memory is 8.0 GB. [2021-06-16 21:43:19,661 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 202.4 MB. Free memory was 185.1 MB in the beginning and 184.9 MB in the end (delta: 107.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 21:43:19,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.91 ms. Allocated memory is still 202.4 MB. Free memory was 183.7 MB in the beginning and 182.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 21:43:19,661 INFO L168 Benchmark]: Boogie Preprocessor took 18.63 ms. Allocated memory is still 202.4 MB. Free memory was 182.3 MB in the beginning and 181.4 MB in the end (delta: 970.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 21:43:19,661 INFO L168 Benchmark]: RCFGBuilder took 240.02 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 168.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-16 21:43:19,661 INFO L168 Benchmark]: TraceAbstraction took 697715.16 ms. Allocated memory was 202.4 MB in the beginning and 426.8 MB in the end (delta: 224.4 MB). Free memory was 167.8 MB in the beginning and 295.7 MB in the end (delta: -127.9 MB). Peak memory consumption was 255.5 MB. Max. memory is 8.0 GB. [2021-06-16 21:43:19,662 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 0.16 ms. Allocated memory is still 202.4 MB. Free memory was 185.1 MB in the beginning and 184.9 MB in the end (delta: 107.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.91 ms. Allocated memory is still 202.4 MB. Free memory was 183.7 MB in the beginning and 182.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.63 ms. Allocated memory is still 202.4 MB. Free memory was 182.3 MB in the beginning and 181.4 MB in the end (delta: 970.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 240.02 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 168.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 697715.16 ms. Allocated memory was 202.4 MB in the beginning and 426.8 MB in the end (delta: 224.4 MB). Free memory was 167.8 MB in the beginning and 295.7 MB in the end (delta: -127.9 MB). Peak memory consumption was 255.5 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...