/usr/bin/java -Xmx16000000000 -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-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 02:51:44,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 02:51:44,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 02:51:44,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-13 02:51:44,254 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-Sleep-SemanticLbe-Delay.epf [2021-03-13 02:51:44,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 02:51:44,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 02:51:44,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 02:51:44,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 02:51:44,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 02:51:44,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 02:51:44,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 02:51:44,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 02:51:44,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 02:51:44,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 02:51:44,272 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 02:51:44,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 02:51:44,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 02:51:44,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 02:51:44,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 02:51:44,575 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-13 02:51:44,576 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-13 02:51:44,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-03-13 02:51:44,577 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-03-13 02:51:44,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 02:51:44,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-13 02:51:44,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 02:51:44,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 02:51:44,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 02:51:44,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 02:51:44,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 02:51:44,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 02:51:44,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 02:51:44,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/1) ... [2021-03-13 02:51:44,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 02:51:44,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 02:51:44,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 02:51:44,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 02:51:44,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (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 [2021-03-13 02:51:44,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-13 02:51:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-13 02:51:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-13 02:51:44,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-13 02:51:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-13 02:51:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-13 02:51:44,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-13 02:51:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 02:51:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 02:51:44,686 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 02:51:44,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 02:51:44,821 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-13 02:51:44,822 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:51:44 BoogieIcfgContainer [2021-03-13 02:51:44,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 02:51:44,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 02:51:44,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 02:51:44,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 02:51:44,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:51:44" (1/2) ... [2021-03-13 02:51:44,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26076912 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 02:51:44, skipping insertion in model container [2021-03-13 02:51:44,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:51:44" (2/2) ... [2021-03-13 02:51:44,832 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-03-13 02:51:44,835 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 02:51:44,835 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 02:51:44,838 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 02:51:44,838 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 02:51:44,863 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-13 02:51:44,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 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) [2021-03-13 02:51:44,932 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 02:51:44,932 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 02:51:44,932 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 02:51:44,932 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 02:51:44,932 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 02:51:44,932 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 02:51:44,933 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 02:51:44,933 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 02:51:44,942 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 02:51:44,942 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 28 transitions, 72 flow [2021-03-13 02:51:44,944 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 28 transitions, 72 flow [2021-03-13 02:51:44,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 72 flow [2021-03-13 02:51:44,960 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-03-13 02:51:44,960 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-13 02:51:44,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 3/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-03-13 02:51:44,962 INFO L116 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-13 02:51:45,510 INFO L131 LiptonReduction]: Checked pairs total: 171 [2021-03-13 02:51:45,511 INFO L133 LiptonReduction]: Total number of compositions: 15 [2021-03-13 02:51:45,590 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:45,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:45,595 INFO L82 PathProgramCache]: Analyzing trace with hash 804708578, now seen corresponding path program 1 times [2021-03-13 02:51:45,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:45,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321964279] [2021-03-13 02:51:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:45,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321964279] [2021-03-13 02:51:45,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 02:51:45,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 02:51:45,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255988350] [2021-03-13 02:51:45,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 02:51:45,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:45,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 02:51:45,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 02:51:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:45,722 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:45,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-03-13 02:51:45,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:45,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-13 02:51:45,772 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:45,772 INFO L82 PathProgramCache]: Analyzing trace with hash -533399944, now seen corresponding path program 1 times [2021-03-13 02:51:45,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:45,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915695915] [2021-03-13 02:51:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:45,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915695915] [2021-03-13 02:51:45,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047399357] [2021-03-13 02:51:45,848 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 [2021-03-13 02:51:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:45,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-13 02:51:45,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:45,992 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 13 treesize of output 9 [2021-03-13 02:51:45,995 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:45,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:46,000 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-13 02:51:46,000 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-03-13 02:51:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:46,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:51:46,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-13 02:51:46,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574636385] [2021-03-13 02:51:46,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 02:51:46,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:46,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 02:51:46,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-13 02:51:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:46,051 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:46,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-03-13 02:51:46,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:46,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:46,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:46,363 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:46,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1513452446, now seen corresponding path program 2 times [2021-03-13 02:51:46,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:46,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818118339] [2021-03-13 02:51:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:46,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818118339] [2021-03-13 02:51:46,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833281503] [2021-03-13 02:51:46,396 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 [2021-03-13 02:51:46,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:51:46,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:51:46,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-13 02:51:46,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 02:51:46,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:51:46,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-03-13 02:51:46,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298698421] [2021-03-13 02:51:46,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 02:51:46,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:46,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 02:51:46,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-13 02:51:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:46,449 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:46,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 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) [2021-03-13 02:51:46,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:46,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:46,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:46,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:46,715 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:46,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:46,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1896987400, now seen corresponding path program 3 times [2021-03-13 02:51:46,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:46,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250745739] [2021-03-13 02:51:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:46,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250745739] [2021-03-13 02:51:46,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953765287] [2021-03-13 02:51:46,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:46,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-13 02:51:46,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:51:46,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-13 02:51:46,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:47,050 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:47,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-03-13 02:51:47,063 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:47,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:47,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-13 02:51:47,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2021-03-13 02:51:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:47,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:51:47,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-03-13 02:51:47,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878913089] [2021-03-13 02:51:47,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-13 02:51:47,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:47,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-13 02:51:47,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-03-13 02:51:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:47,133 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:47,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-03-13 02:51:47,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:47,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:47,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:47,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:51:47,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:51:47,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:47,539 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:47,540 INFO L82 PathProgramCache]: Analyzing trace with hash -783284488, now seen corresponding path program 4 times [2021-03-13 02:51:47,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:47,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003479591] [2021-03-13 02:51:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:51:47,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003479591] [2021-03-13 02:51:47,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329871542] [2021-03-13 02:51:47,712 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:47,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-13 02:51:47,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:51:47,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 47 conjunts are in the unsatisfiable core [2021-03-13 02:51:47,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:48,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:48,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 86 [2021-03-13 02:51:48,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:48,247 INFO L628 ElimStorePlain]: treesize reduction 92, result has 58.9 percent of original size [2021-03-13 02:51:48,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:51:48,278 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:76, output treesize:52 [2021-03-13 02:51:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:48,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:51:48,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-13 02:51:48,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633083806] [2021-03-13 02:51:48,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-13 02:51:48,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:48,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-13 02:51:48,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-03-13 02:51:48,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:48,445 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:48,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:51:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:51:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:51:48,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:51:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:51:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:51:49,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-13 02:51:49,288 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:49,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:49,289 INFO L82 PathProgramCache]: Analyzing trace with hash -334065756, now seen corresponding path program 5 times [2021-03-13 02:51:49,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:49,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583066873] [2021-03-13 02:51:49,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:51:49,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583066873] [2021-03-13 02:51:49,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099820284] [2021-03-13 02:51:49,552 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:49,589 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-13 02:51:49,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:51:49,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 59 conjunts are in the unsatisfiable core [2021-03-13 02:51:49,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:50,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:50,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 126 [2021-03-13 02:51:50,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:50,255 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-03-13 02:51:50,263 INFO L628 ElimStorePlain]: treesize reduction 96, result has 71.3 percent of original size [2021-03-13 02:51:50,300 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:51:50,300 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:90, output treesize:125 [2021-03-13 02:51:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:51:50,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:51:50,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 23 [2021-03-13 02:51:50,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180175198] [2021-03-13 02:51:50,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-13 02:51:50,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:51:50,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-13 02:51:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-03-13 02:51:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:50,686 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:51:50,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:51:50,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:51:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:51:51,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:51,750 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:51:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:51:51,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1981567196, now seen corresponding path program 6 times [2021-03-13 02:51:51,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:51:51,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804755152] [2021-03-13 02:51:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:51:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:51:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:51:52,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804755152] [2021-03-13 02:51:52,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223543381] [2021-03-13 02:51:52,072 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:51:52,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-13 02:51:52,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:51:52,114 WARN L261 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 72 conjunts are in the unsatisfiable core [2021-03-13 02:51:52,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:51:53,529 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-03-13 02:51:56,916 WARN L205 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-03-13 02:51:57,095 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:57,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 176 [2021-03-13 02:51:57,119 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:57,199 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:57,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 176 [2021-03-13 02:51:57,213 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:57,610 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 164 [2021-03-13 02:51:57,611 INFO L628 ElimStorePlain]: treesize reduction 384, result has 61.7 percent of original size [2021-03-13 02:51:57,692 INFO L550 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-03-13 02:51:57,692 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:221, output treesize:200 [2021-03-13 02:51:58,050 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2021-03-13 02:51:58,380 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-03-13 02:51:58,904 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 84 [2021-03-13 02:51:59,209 INFO L446 ElimStorePlain]: Different costs {15=[queue], 21=[v_prenex_23, v_prenex_26], 28=[v_prenex_25, v_prenex_24, v_prenex_34, v_prenex_22, v_prenex_29, v_prenex_28, v_prenex_27]} [2021-03-13 02:51:59,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 16 [2021-03-13 02:51:59,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:59,449 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-03-13 02:51:59,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,489 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-03-13 02:51:59,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 33 [2021-03-13 02:51:59,491 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:59,669 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-03-13 02:51:59,669 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:59,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,710 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-03-13 02:51:59,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 33 [2021-03-13 02:51:59,712 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-13 02:51:59,917 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-13 02:51:59,917 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:51:59,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:51:59,987 INFO L354 Elim1Store]: treesize reduction 46, result has 43.2 percent of original size [2021-03-13 02:51:59,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 53 [2021-03-13 02:52:00,020 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:00,184 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-13 02:52:00,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:00,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,235 INFO L354 Elim1Store]: treesize reduction 30, result has 47.4 percent of original size [2021-03-13 02:52:00,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 45 [2021-03-13 02:52:00,237 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:00,401 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-13 02:52:00,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:00,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,460 INFO L354 Elim1Store]: treesize reduction 32, result has 43.9 percent of original size [2021-03-13 02:52:00,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 43 [2021-03-13 02:52:00,462 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:00,608 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-03-13 02:52:00,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:00,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,671 INFO L354 Elim1Store]: treesize reduction 62, result has 41.0 percent of original size [2021-03-13 02:52:00,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 65 treesize of output 61 [2021-03-13 02:52:00,673 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:00,813 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-03-13 02:52:00,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:00,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:00,867 INFO L354 Elim1Store]: treesize reduction 46, result has 43.2 percent of original size [2021-03-13 02:52:00,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 53 [2021-03-13 02:52:00,869 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:00,993 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-03-13 02:52:00,994 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:01,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,057 INFO L354 Elim1Store]: treesize reduction 64, result has 39.0 percent of original size [2021-03-13 02:52:01,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 65 treesize of output 59 [2021-03-13 02:52:01,060 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:01,176 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-13 02:52:01,176 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:01,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:52:01,239 INFO L354 Elim1Store]: treesize reduction 74, result has 36.8 percent of original size [2021-03-13 02:52:01,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 63 treesize of output 61 [2021-03-13 02:52:01,242 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-13 02:52:01,345 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-13 02:52:01,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:52:01,386 INFO L550 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 10 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-03-13 02:52:01,387 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 21 variables, input treesize:824, output treesize:149 [2021-03-13 02:52:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:52:01,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:52:01,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 30 [2021-03-13 02:52:01,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138904854] [2021-03-13 02:52:01,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-13 02:52:01,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:52:01,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-13 02:52:01,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2021-03-13 02:52:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:52:01,470 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:52:01,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 31 states have internal predecessors, (55), 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) [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:52:01,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:52:07,429 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-03-13 02:52:10,431 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2021-03-13 02:52:20,424 WARN L205 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-03-13 02:52:24,137 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2021-03-13 02:52:24,623 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 64 [2021-03-13 02:52:30,776 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-03-13 02:52:31,817 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 61 [2021-03-13 02:52:33,422 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2021-03-13 02:52:34,138 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2021-03-13 02:52:34,420 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-03-13 02:52:35,068 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:52:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:52:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:52:35,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:52:35,309 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:52:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:52:35,310 INFO L82 PathProgramCache]: Analyzing trace with hash 776509732, now seen corresponding path program 7 times [2021-03-13 02:52:35,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:52:35,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754778378] [2021-03-13 02:52:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:52:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:52:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 02:52:35,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754778378] [2021-03-13 02:52:35,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552113084] [2021-03-13 02:52:35,519 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:52:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:52:35,570 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 95 conjunts are in the unsatisfiable core [2021-03-13 02:52:35,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:52:56,460 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-03-13 02:53:06,310 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-03-13 02:53:06,311 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:53:06,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 302 [2021-03-13 02:53:06,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:53:06,794 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2021-03-13 02:53:06,795 INFO L628 ElimStorePlain]: treesize reduction 399, result has 58.4 percent of original size [2021-03-13 02:53:07,001 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:53:07,002 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:138, output treesize:118 [2021-03-13 02:53:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 79 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:53:07,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:53:07,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 24] total 30 [2021-03-13 02:53:07,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404937301] [2021-03-13 02:53:07,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-13 02:53:07,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:53:07,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-13 02:53:07,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=795, Unknown=4, NotChecked=0, Total=992 [2021-03-13 02:53:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:53:07,546 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:53:07,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 31 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) [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:53:24,997 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:53:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:53:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:53:43,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable170 [2021-03-13 02:53:43,173 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:53:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:53:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1725525796, now seen corresponding path program 8 times [2021-03-13 02:53:43,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:53:43,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751763008] [2021-03-13 02:53:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:53:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:53:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-03-13 02:53:43,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751763008] [2021-03-13 02:53:43,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654876610] [2021-03-13 02:53:43,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:53:43,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:53:43,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:53:43,402 WARN L261 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 119 conjunts are in the unsatisfiable core [2021-03-13 02:53:43,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:54:04,221 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-03-13 02:55:01,115 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-03-13 02:55:01,341 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-03-13 02:55:01,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable356 [2021-03-13 02:55:01,564 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) 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:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) 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:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) 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:206) ... 44 more [2021-03-13 02:55:01,604 INFO L168 Benchmark]: Toolchain (without parser) took 196978.23 ms. Allocated memory was 337.6 MB in the beginning and 509.6 MB in the end (delta: 172.0 MB). Free memory was 318.1 MB in the beginning and 305.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 187.9 MB. Max. memory is 16.0 GB. [2021-03-13 02:55:01,604 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 319.3 MB in the beginning and 319.3 MB in the end (delta: 83.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 02:55:01,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.18 ms. Allocated memory is still 337.6 MB. Free memory was 317.7 MB in the beginning and 316.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-13 02:55:01,604 INFO L168 Benchmark]: Boogie Preprocessor took 10.76 ms. Allocated memory is still 337.6 MB. Free memory was 316.2 MB in the beginning and 315.2 MB in the end (delta: 974.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 02:55:01,605 INFO L168 Benchmark]: RCFGBuilder took 187.92 ms. Allocated memory is still 337.6 MB. Free memory was 315.2 MB in the beginning and 302.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-13 02:55:01,605 INFO L168 Benchmark]: TraceAbstraction took 196751.64 ms. Allocated memory was 337.6 MB in the beginning and 509.6 MB in the end (delta: 172.0 MB). Free memory was 301.8 MB in the beginning and 305.5 MB in the end (delta: -3.6 MB). Peak memory consumption was 169.0 MB. Max. memory is 16.0 GB. [2021-03-13 02:55:01,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 319.3 MB in the beginning and 319.3 MB in the end (delta: 83.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.18 ms. Allocated memory is still 337.6 MB. Free memory was 317.7 MB in the beginning and 316.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.76 ms. Allocated memory is still 337.6 MB. Free memory was 316.2 MB in the beginning and 315.2 MB in the end (delta: 974.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 187.92 ms. Allocated memory is still 337.6 MB. Free memory was 315.2 MB in the beginning and 302.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 196751.64 ms. Allocated memory was 337.6 MB in the beginning and 509.6 MB in the end (delta: 172.0 MB). Free memory was 301.8 MB in the beginning and 305.5 MB in the end (delta: -3.6 MB). Peak memory consumption was 169.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 566.8ms, 32 PlacesBefore, 20 PlacesAfterwards, 28 TransitionsBefore, 16 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 145, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 92, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 92, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 145, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 92, unknown conditional: 0, unknown unconditional: 92] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...