/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-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/producer-consumer-counter-2-Q4m.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 23:06:15,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 23:06:15,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 23:06:15,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 23:06:16,016 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-NoLbe-Delay.epf [2021-02-19 23:06:16,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 23:06:16,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 23:06:16,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 23:06:16,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 23:06:16,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 23:06:16,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 23:06:16,054 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 23:06:16,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 23:06:16,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 23:06:16,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 23:06:16,055 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 23:06:16,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 23:06:16,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 23:06:16,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 23:06:16,057 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 23:06:16,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 23:06:16,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 23:06:16,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 23:06:16,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 23:06:16,353 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 23:06:16,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 23:06:16,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/producer-consumer-counter-2-Q4m.wvr.bpl [2021-02-19 23:06:16,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/producer-consumer-counter-2-Q4m.wvr.bpl' [2021-02-19 23:06:16,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 23:06:16,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 23:06:16,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 23:06:16,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 23:06:16,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 23:06:16,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 23:06:16,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 23:06:16,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 23:06:16,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 23:06:16,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/1) ... [2021-02-19 23:06:16,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 23:06:16,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 23:06:16,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 23:06:16,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 23:06:16,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (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 [2021-02-19 23:06:16,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 23:06:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 23:06:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 23:06:16,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 23:06:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 23:06:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 23:06:16,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 23:06:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 23:06:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 23:06:16,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 23:06:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 23:06:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 23:06:16,499 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 23:06:16,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 23:06:16,714 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 23:06:16,715 INFO L202 PluginConnector]: Adding new model producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:06:16 BoogieIcfgContainer [2021-02-19 23:06:16,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 23:06:16,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 23:06:16,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 23:06:16,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 23:06:16,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:06:16" (1/2) ... [2021-02-19 23:06:16,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0c1445 and model type producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:06:16, skipping insertion in model container [2021-02-19 23:06:16,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:06:16" (2/2) ... [2021-02-19 23:06:16,721 INFO L111 eAbstractionObserver]: Analyzing ICFG producer-consumer-counter-2-Q4m.wvr.bpl [2021-02-19 23:06:16,724 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 23:06:16,725 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 23:06:16,744 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 23:06:16,744 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 23:06:16,773 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 23:06:16,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 23:06:16,823 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 23:06:16,823 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 23:06:16,823 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 23:06:16,823 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 23:06:16,823 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 23:06:16,823 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 23:06:16,823 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 23:06:16,823 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 23:06:16,945 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:16,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:16,951 INFO L82 PathProgramCache]: Analyzing trace with hash -59221789, now seen corresponding path program 1 times [2021-02-19 23:06:16,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:16,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57112688] [2021-02-19 23:06:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:17,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57112688] [2021-02-19 23:06:17,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:06:17,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 23:06:17,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124568126] [2021-02-19 23:06:17,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 23:06:17,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:17,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 23:06:17,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 23:06:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:17,111 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:17,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-02-19 23:06:17,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:17,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 23:06:17,171 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:17,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1181463231, now seen corresponding path program 1 times [2021-02-19 23:06:17,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:17,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742923248] [2021-02-19 23:06:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:06:17,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742923248] [2021-02-19 23:06:17,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067547708] [2021-02-19 23:06:17,238 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 [2021-02-19 23:06:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:17,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 23:06:17,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:17,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:17,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2021-02-19 23:06:17,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116312823] [2021-02-19 23:06:17,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 23:06:17,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:17,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 23:06:17,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 23:06:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:17,412 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:17,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2021-02-19 23:06:17,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:17,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:17,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:17,806 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:17,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1035585748, now seen corresponding path program 2 times [2021-02-19 23:06:17,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:17,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284832844] [2021-02-19 23:06:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:17,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284832844] [2021-02-19 23:06:17,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697710988] [2021-02-19 23:06:17,903 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 [2021-02-19 23:06:17,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:06:17,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:17,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-02-19 23:06:17,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:18,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:18,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 12 [2021-02-19 23:06:18,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809779343] [2021-02-19 23:06:18,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 23:06:18,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 23:06:18,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-02-19 23:06:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:18,017 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:18,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:06:18,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:18,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:18,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:18,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:18,410 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:18,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:18,410 INFO L82 PathProgramCache]: Analyzing trace with hash -944810557, now seen corresponding path program 3 times [2021-02-19 23:06:18,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:18,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039656914] [2021-02-19 23:06:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:18,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039656914] [2021-02-19 23:06:18,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5290087] [2021-02-19 23:06:18,466 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 [2021-02-19 23:06:18,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-02-19 23:06:18,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:18,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 23:06:18,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:18,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:18,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-02-19 23:06:18,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811579923] [2021-02-19 23:06:18,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 23:06:18,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:18,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 23:06:18,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-02-19 23:06:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:18,582 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:18,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2021-02-19 23:06:18,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:18,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:18,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:18,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:18,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:18,812 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:18,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:18,812 INFO L82 PathProgramCache]: Analyzing trace with hash 714714401, now seen corresponding path program 4 times [2021-02-19 23:06:18,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:18,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463972589] [2021-02-19 23:06:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:19,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463972589] [2021-02-19 23:06:19,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365772257] [2021-02-19 23:06:19,029 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 [2021-02-19 23:06:19,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:06:19,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:19,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2021-02-19 23:06:19,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:19,421 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-02-19 23:06:19,421 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 29 treesize of output 13 [2021-02-19 23:06:19,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:06:19,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:19,433 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:19,433 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:10 [2021-02-19 23:06:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:19,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:19,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-02-19 23:06:19,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394550891] [2021-02-19 23:06:19,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-19 23:06:19,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:19,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-19 23:06:19,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-02-19 23:06:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:19,513 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:19,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 26 states have internal predecessors, (63), 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) [2021-02-19 23:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:19,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:19,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:20,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-02-19 23:06:20,185 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:20,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:20,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1641423628, now seen corresponding path program 5 times [2021-02-19 23:06:20,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:20,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072757022] [2021-02-19 23:06:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:20,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072757022] [2021-02-19 23:06:20,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106469981] [2021-02-19 23:06:20,232 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 [2021-02-19 23:06:20,270 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-02-19 23:06:20,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:20,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-02-19 23:06:20,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:20,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:20,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-02-19 23:06:20,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299984180] [2021-02-19 23:06:20,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 23:06:20,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:20,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 23:06:20,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-02-19 23:06:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:20,354 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:20,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:20,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:20,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:20,585 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:20,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:20,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1413526994, now seen corresponding path program 6 times [2021-02-19 23:06:20,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:20,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653945856] [2021-02-19 23:06:20,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:20,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653945856] [2021-02-19 23:06:20,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020446157] [2021-02-19 23:06:20,884 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 [2021-02-19 23:06:20,923 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-02-19 23:06:20,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:20,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 23:06:20,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:22,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:22,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:22,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:22,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:22,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:22,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 66 [2021-02-19 23:06:22,282 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2021-02-19 23:06:22,338 INFO L628 ElimStorePlain]: treesize reduction 105, result has 34.4 percent of original size [2021-02-19 23:06:22,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:22,354 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:57, output treesize:33 [2021-02-19 23:06:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:22,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:22,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 36 [2021-02-19 23:06:22,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852206056] [2021-02-19 23:06:22,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-19 23:06:22,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:22,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-19 23:06:22,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2021-02-19 23:06:22,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:22,547 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:22,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 36 states have internal predecessors, (75), 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) [2021-02-19 23:06:22,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:22,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:22,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:22,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:22,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:22,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:22,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:23,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:23,946 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:23,947 INFO L82 PathProgramCache]: Analyzing trace with hash 844268801, now seen corresponding path program 7 times [2021-02-19 23:06:23,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:23,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65301372] [2021-02-19 23:06:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:24,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65301372] [2021-02-19 23:06:24,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425387558] [2021-02-19 23:06:24,322 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 [2021-02-19 23:06:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:24,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 37 conjunts are in the unsatisfiable core [2021-02-19 23:06:24,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:25,016 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-02-19 23:06:25,017 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 54 treesize of output 22 [2021-02-19 23:06:25,018 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:06:25,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:25,023 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:25,023 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:10 [2021-02-19 23:06:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:25,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:25,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2021-02-19 23:06:25,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404243511] [2021-02-19 23:06:25,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-02-19 23:06:25,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-02-19 23:06:25,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1548, Unknown=0, NotChecked=0, Total=1722 [2021-02-19 23:06:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:25,121 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:25,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 42 states have internal predecessors, (87), 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) [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:25,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:26,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-02-19 23:06:26,866 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:26,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:26,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1033074964, now seen corresponding path program 8 times [2021-02-19 23:06:26,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:26,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945862159] [2021-02-19 23:06:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:26,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945862159] [2021-02-19 23:06:26,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320400895] [2021-02-19 23:06:26,931 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 [2021-02-19 23:06:26,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:06:26,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:26,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2021-02-19 23:06:26,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:27,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:27,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-02-19 23:06:27,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097468520] [2021-02-19 23:06:27,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 23:06:27,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:27,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 23:06:27,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-02-19 23:06:27,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:27,046 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:27,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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) [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:27,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:27,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:27,283 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:27,283 INFO L82 PathProgramCache]: Analyzing trace with hash -440011534, now seen corresponding path program 9 times [2021-02-19 23:06:27,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:27,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158923141] [2021-02-19 23:06:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:27,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158923141] [2021-02-19 23:06:27,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734038009] [2021-02-19 23:06:27,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:27,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 23:06:27,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:27,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-02-19 23:06:27,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:28,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:06:29,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:29,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 66 treesize of output 134 [2021-02-19 23:06:29,596 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 6 xjuncts. [2021-02-19 23:06:29,757 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 28 [2021-02-19 23:06:29,758 INFO L628 ElimStorePlain]: treesize reduction 2254, result has 2.0 percent of original size [2021-02-19 23:06:29,763 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:29,763 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:77, output treesize:57 [2021-02-19 23:06:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:29,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:29,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 52 [2021-02-19 23:06:29,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880944789] [2021-02-19 23:06:29,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-02-19 23:06:29,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:29,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-02-19 23:06:29,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2433, Unknown=0, NotChecked=0, Total=2652 [2021-02-19 23:06:29,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:29,963 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:29,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 52 states have internal predecessors, (99), 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) [2021-02-19 23:06:29,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:29,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:29,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:29,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:32,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-02-19 23:06:32,538 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:32,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:32,538 INFO L82 PathProgramCache]: Analyzing trace with hash -587934495, now seen corresponding path program 10 times [2021-02-19 23:06:32,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:32,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933240719] [2021-02-19 23:06:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:33,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933240719] [2021-02-19 23:06:33,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436360311] [2021-02-19 23:06:33,173 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:33,201 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:06:33,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:33,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 53 conjunts are in the unsatisfiable core [2021-02-19 23:06:33,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:34,503 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-02-19 23:06:34,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 30 [2021-02-19 23:06:34,505 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:06:34,510 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:34,510 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:34,511 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:81, output treesize:10 [2021-02-19 23:06:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:34,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:34,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 58 [2021-02-19 23:06:34,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558521580] [2021-02-19 23:06:34,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-02-19 23:06:34,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:34,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-02-19 23:06:34,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3039, Unknown=0, NotChecked=0, Total=3306 [2021-02-19 23:06:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:34,657 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:34,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 1.9137931034482758) internal successors, (111), 58 states have internal predecessors, (111), 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) [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:34,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:37,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable238 [2021-02-19 23:06:37,683 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:37,683 INFO L82 PathProgramCache]: Analyzing trace with hash 469802292, now seen corresponding path program 11 times [2021-02-19 23:06:37,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:37,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336229002] [2021-02-19 23:06:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 92 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:37,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336229002] [2021-02-19 23:06:37,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760921403] [2021-02-19 23:06:37,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:37,785 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-02-19 23:06:37,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:37,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 23:06:37,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 92 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:37,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:37,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2021-02-19 23:06:37,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076903715] [2021-02-19 23:06:37,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 23:06:37,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 23:06:37,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-02-19 23:06:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:37,880 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:37,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-02-19 23:06:37,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:37,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:37,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:37,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:37,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:38,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:38,120 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:38,120 INFO L82 PathProgramCache]: Analyzing trace with hash -755876846, now seen corresponding path program 12 times [2021-02-19 23:06:38,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:38,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325357919] [2021-02-19 23:06:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:38,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325357919] [2021-02-19 23:06:38,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516481147] [2021-02-19 23:06:38,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:38,954 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-02-19 23:06:38,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:38,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 61 conjunts are in the unsatisfiable core [2021-02-19 23:06:38,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:40,710 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-02-19 23:06:40,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 34 [2021-02-19 23:06:40,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:06:40,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:40,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:40,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:89, output treesize:10 [2021-02-19 23:06:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:40,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:40,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 66 [2021-02-19 23:06:40,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088288936] [2021-02-19 23:06:40,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-02-19 23:06:40,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:40,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-02-19 23:06:40,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=3972, Unknown=0, NotChecked=0, Total=4290 [2021-02-19 23:06:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:40,877 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:40,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 1.9696969696969697) internal successors, (130), 66 states have internal predecessors, (130), 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) [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:40,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:45,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable242 [2021-02-19 23:06:45,032 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:45,032 INFO L82 PathProgramCache]: Analyzing trace with hash 936123491, now seen corresponding path program 13 times [2021-02-19 23:06:45,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:45,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21925583] [2021-02-19 23:06:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 117 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:45,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21925583] [2021-02-19 23:06:45,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917213412] [2021-02-19 23:06:45,114 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:45,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2021-02-19 23:06:45,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 117 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:45,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:45,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2021-02-19 23:06:45,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283712700] [2021-02-19 23:06:45,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 23:06:45,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:45,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 23:06:45,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-02-19 23:06:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:45,263 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:45,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:45,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:06:45,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:45,506 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:45,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:45,506 INFO L82 PathProgramCache]: Analyzing trace with hash 775331009, now seen corresponding path program 14 times [2021-02-19 23:06:45,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:45,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321124780] [2021-02-19 23:06:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:46,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321124780] [2021-02-19 23:06:46,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336692543] [2021-02-19 23:06:46,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:46,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:06:46,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:46,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 69 conjunts are in the unsatisfiable core [2021-02-19 23:06:46,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:49,071 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-02-19 23:06:49,071 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 102 treesize of output 38 [2021-02-19 23:06:49,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:06:49,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:06:49,078 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:06:49,078 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:105, output treesize:10 [2021-02-19 23:06:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:49,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:49,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 74 [2021-02-19 23:06:49,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223366566] [2021-02-19 23:06:49,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-02-19 23:06:49,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:49,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-02-19 23:06:49,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=5030, Unknown=0, NotChecked=0, Total=5402 [2021-02-19 23:06:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:49,274 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:49,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.8243243243243243) internal successors, (135), 74 states have internal predecessors, (135), 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) [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:06:49,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:06:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:06:54,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2021-02-19 23:06:54,808 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:54,808 INFO L82 PathProgramCache]: Analyzing trace with hash 301680980, now seen corresponding path program 15 times [2021-02-19 23:06:54,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:54,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873884527] [2021-02-19 23:06:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 145 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:54,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873884527] [2021-02-19 23:06:54,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254885343] [2021-02-19 23:06:54,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:54,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-02-19 23:06:54,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:54,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-19 23:06:54,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:06:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 145 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:55,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:06:55,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 13 [2021-02-19 23:06:55,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156384336] [2021-02-19 23:06:55,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 23:06:55,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:06:55,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 23:06:55,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-02-19 23:06:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:55,075 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:06:55,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 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) [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:06:55,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:06:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:06:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:06:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:06:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:06:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:06:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:06:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:06:55,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:55,334 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:06:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:06:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1693480142, now seen corresponding path program 16 times [2021-02-19 23:06:55,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:06:55,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97465679] [2021-02-19 23:06:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:06:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:06:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:06:56,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97465679] [2021-02-19 23:06:56,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036690350] [2021-02-19 23:06:56,779 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:06:56,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:06:56,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:06:56,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 77 conjunts are in the unsatisfiable core [2021-02-19 23:06:56,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:07:00,331 INFO L354 Elim1Store]: treesize reduction 432, result has 0.2 percent of original size [2021-02-19 23:07:00,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 114 treesize of output 42 [2021-02-19 23:07:00,333 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:07:00,338 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:07:00,339 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:07:00,339 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:117, output treesize:10 [2021-02-19 23:07:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:00,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:07:00,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 82 [2021-02-19 23:07:00,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632854707] [2021-02-19 23:07:00,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-02-19 23:07:00,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:07:00,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-02-19 23:07:00,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=6213, Unknown=0, NotChecked=0, Total=6642 [2021-02-19 23:07:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:00,565 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:07:00,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 1.7926829268292683) internal successors, (147), 82 states have internal predecessors, (147), 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) [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:09,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:07:09,062 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:07:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:07:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1031341757, now seen corresponding path program 17 times [2021-02-19 23:07:09,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:07:09,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648602387] [2021-02-19 23:07:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:07:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:07:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 176 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:09,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648602387] [2021-02-19 23:07:09,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388036534] [2021-02-19 23:07:09,201 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:07:09,248 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-02-19 23:07:09,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:07:09,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 22 conjunts are in the unsatisfiable core [2021-02-19 23:07:09,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:07:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 176 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:09,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:07:09,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 14 [2021-02-19 23:07:09,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836611233] [2021-02-19 23:07:09,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-19 23:07:09,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:07:09,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-19 23:07:09,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-02-19 23:07:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:09,432 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:07:09,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:09,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:09,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:09,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:07:09,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable253 [2021-02-19 23:07:09,674 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:07:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:07:09,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2125603679, now seen corresponding path program 18 times [2021-02-19 23:07:09,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:07:09,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468460425] [2021-02-19 23:07:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:07:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:07:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:11,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468460425] [2021-02-19 23:07:11,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622359582] [2021-02-19 23:07:11,654 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:07:11,693 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-02-19 23:07:11,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:07:11,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 88 conjunts are in the unsatisfiable core [2021-02-19 23:07:11,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:07:17,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:07:17,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 46 [2021-02-19 23:07:17,158 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:07:17,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:07:17,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:07:17,168 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:15 [2021-02-19 23:07:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:17,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:07:17,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 49] total 92 [2021-02-19 23:07:17,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809755608] [2021-02-19 23:07:17,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-02-19 23:07:17,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:07:17,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-02-19 23:07:17,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=490, Invalid=7882, Unknown=0, NotChecked=0, Total=8372 [2021-02-19 23:07:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:17,633 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:07:17,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 92 states, 92 states have (on average 1.7282608695652173) internal successors, (159), 92 states have internal predecessors, (159), 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) [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:07:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:07:28,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:07:28,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable254 [2021-02-19 23:07:28,203 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:07:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:07:28,203 INFO L82 PathProgramCache]: Analyzing trace with hash 367518290, now seen corresponding path program 19 times [2021-02-19 23:07:28,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:07:28,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682215012] [2021-02-19 23:07:28,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:07:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:07:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:31,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682215012] [2021-02-19 23:07:31,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704293898] [2021-02-19 23:07:31,312 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:07:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:07:31,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 93 conjunts are in the unsatisfiable core [2021-02-19 23:07:31,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:07:39,551 INFO L354 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size [2021-02-19 23:07:39,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 138 treesize of output 50 [2021-02-19 23:07:39,555 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:07:39,564 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:07:39,566 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:07:39,566 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:141, output treesize:10 [2021-02-19 23:07:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:07:40,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:07:40,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 98 [2021-02-19 23:07:40,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663813601] [2021-02-19 23:07:40,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-02-19 23:07:40,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:07:40,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-02-19 23:07:40,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=8954, Unknown=0, NotChecked=0, Total=9506 [2021-02-19 23:07:40,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:40,025 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:07:40,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 1.7448979591836735) internal successors, (171), 98 states have internal predecessors, (171), 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) [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:07:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:07:46,233 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2021-02-19 23:07:46,569 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2021-02-19 23:07:47,313 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-02-19 23:07:47,623 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-02-19 23:07:47,932 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2021-02-19 23:07:48,369 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:07:48,687 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:07:49,004 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-02-19 23:07:49,436 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 23:07:49,775 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 23:07:50,112 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2021-02-19 23:07:50,571 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:07:50,921 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:07:51,263 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2021-02-19 23:07:52,206 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2021-02-19 23:07:52,488 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2021-02-19 23:07:52,944 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:07:53,259 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-19 23:07:53,775 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-02-19 23:07:54,074 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-19 23:07:54,462 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2021-02-19 23:07:54,772 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:07:55,180 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-02-19 23:07:55,491 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-02-19 23:07:55,914 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-02-19 23:07:56,260 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2021-02-19 23:07:56,642 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-02-19 23:07:56,965 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2021-02-19 23:07:57,519 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-02-19 23:07:57,859 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-02-19 23:07:58,341 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-02-19 23:07:58,682 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-02-19 23:07:59,207 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-02-19 23:07:59,601 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-02-19 23:08:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:02,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-02-19 23:08:02,208 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:08:02,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:08:02,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1615449635, now seen corresponding path program 20 times [2021-02-19 23:08:02,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:08:02,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986728939] [2021-02-19 23:08:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:08:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:08:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 247 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:02,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986728939] [2021-02-19 23:08:02,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506277807] [2021-02-19 23:08:02,529 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:08:02,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:08:02,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:08:02,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjunts are in the unsatisfiable core [2021-02-19 23:08:02,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:08:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 247 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:03,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:08:03,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 16 [2021-02-19 23:08:03,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089945807] [2021-02-19 23:08:03,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-19 23:08:03,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:08:03,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-19 23:08:03,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-02-19 23:08:03,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:03,084 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:08:03,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 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) [2021-02-19 23:08:03,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:03,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:03,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:03,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:03,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:08:03,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable260 [2021-02-19 23:08:03,362 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:08:03,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:08:03,362 INFO L82 PathProgramCache]: Analyzing trace with hash -386886527, now seen corresponding path program 21 times [2021-02-19 23:08:03,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:08:03,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370755500] [2021-02-19 23:08:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:08:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:08:08,344 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:08,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370755500] [2021-02-19 23:08:08,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555442547] [2021-02-19 23:08:08,344 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:08:08,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-02-19 23:08:08,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:08:08,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 101 conjunts are in the unsatisfiable core [2021-02-19 23:08:08,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:08:22,156 INFO L354 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2021-02-19 23:08:22,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 146 treesize of output 54 [2021-02-19 23:08:22,161 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:08:22,172 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:08:22,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:08:22,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:149, output treesize:10 [2021-02-19 23:08:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:22,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:08:22,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 106 [2021-02-19 23:08:22,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688505834] [2021-02-19 23:08:22,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-02-19 23:08:22,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:08:22,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-02-19 23:08:22,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=10512, Unknown=0, NotChecked=0, Total=11130 [2021-02-19 23:08:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:22,896 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:08:22,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 1.7264150943396226) internal successors, (183), 106 states have internal predecessors, (183), 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) [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:22,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:08:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:29,280 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-02-19 23:08:30,236 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-19 23:08:30,586 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-19 23:08:30,940 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2021-02-19 23:08:31,399 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-02-19 23:08:31,765 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-02-19 23:08:32,123 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-02-19 23:08:32,588 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:08:32,956 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:08:33,321 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-02-19 23:08:33,794 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:08:34,232 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:08:34,617 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-02-19 23:08:35,098 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-02-19 23:08:35,487 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-02-19 23:08:35,872 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2021-02-19 23:08:36,356 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-02-19 23:08:36,727 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-02-19 23:08:37,095 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2021-02-19 23:08:38,359 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-02-19 23:08:38,711 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2021-02-19 23:08:39,183 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-02-19 23:08:39,564 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2021-02-19 23:08:40,233 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-02-19 23:08:40,622 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2021-02-19 23:08:41,490 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-02-19 23:08:41,917 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-02-19 23:08:42,698 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-02-19 23:08:43,108 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-02-19 23:08:43,920 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-02-19 23:08:44,344 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2021-02-19 23:08:44,891 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-02-19 23:08:45,330 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-02-19 23:08:45,877 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-02-19 23:08:46,290 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-02-19 23:08:46,856 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-02-19 23:08:47,261 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 23:08:48,008 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-19 23:08:48,460 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-02-19 23:08:49,204 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-19 23:08:49,509 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:08:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:08:53,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:08:53,428 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:08:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:08:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1589560940, now seen corresponding path program 22 times [2021-02-19 23:08:53,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:08:53,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254046656] [2021-02-19 23:08:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:08:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:08:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 287 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:53,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254046656] [2021-02-19 23:08:53,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860093273] [2021-02-19 23:08:53,874 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:08:53,915 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:08:53,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:08:53,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 23:08:53,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:08:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 287 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:08:54,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:08:54,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 17 [2021-02-19 23:08:54,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514192232] [2021-02-19 23:08:54,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 23:08:54,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:08:54,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 23:08:54,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-02-19 23:08:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:54,752 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:08:54,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 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) [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:54,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:08:54,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:08:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:08:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:08:54,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:08:55,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:08:55,027 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:08:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:08:55,027 INFO L82 PathProgramCache]: Analyzing trace with hash 331694450, now seen corresponding path program 23 times [2021-02-19 23:08:55,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:08:55,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096108837] [2021-02-19 23:08:55,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:08:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:09:02,042 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:09:02,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096108837] [2021-02-19 23:09:02,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804295773] [2021-02-19 23:09:02,043 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:09:02,089 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-02-19 23:09:02,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:09:02,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 107 conjunts are in the unsatisfiable core [2021-02-19 23:09:02,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:09:11,119 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 23:09:13,584 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:14,476 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:15,383 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:16,337 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:17,331 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:18,267 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:19,349 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 23:09:20,461 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 23:09:21,035 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 23:09:21,081 INFO L354 Elim1Store]: treesize reduction 912, result has 0.1 percent of original size [2021-02-19 23:09:21,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 158 treesize of output 58 [2021-02-19 23:09:21,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:09:21,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:09:21,108 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:09:21,108 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:161, output treesize:10 [2021-02-19 23:09:22,063 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:09:22,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:09:22,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 114 [2021-02-19 23:09:22,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354259912] [2021-02-19 23:09:22,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 114 states [2021-02-19 23:09:22,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:09:22,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-02-19 23:09:22,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=687, Invalid=12195, Unknown=0, NotChecked=0, Total=12882 [2021-02-19 23:09:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:09:22,066 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:09:22,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 114 states, 114 states have (on average 1.7719298245614035) internal successors, (202), 114 states have internal predecessors, (202), 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) [2021-02-19 23:09:22,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:09:22,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:09:22,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:09:22,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:09:22,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:09:22,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:09:26,139 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 24 [2021-02-19 23:09:29,085 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-02-19 23:09:29,615 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-02-19 23:09:30,093 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2021-02-19 23:09:30,810 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-02-19 23:09:31,304 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-02-19 23:09:31,791 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2021-02-19 23:09:32,518 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-02-19 23:09:33,031 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-02-19 23:09:33,537 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-02-19 23:09:34,284 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-19 23:09:34,784 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-19 23:09:35,282 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2021-02-19 23:09:35,992 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-02-19 23:09:36,516 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-02-19 23:09:37,035 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2021-02-19 23:09:37,734 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:09:38,150 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 23:09:38,676 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-02-19 23:09:39,500 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 23:09:40,099 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 23:09:40,678 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2021-02-19 23:09:41,464 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-02-19 23:09:42,061 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-02-19 23:09:42,650 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2021-02-19 23:09:43,448 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-02-19 23:09:44,054 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-02-19 23:09:44,660 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2021-02-19 23:09:45,452 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-02-19 23:09:46,085 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-02-19 23:09:46,654 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2021-02-19 23:09:48,959 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2021-02-19 23:09:49,418 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-02-19 23:09:50,048 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-02-19 23:09:50,571 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2021-02-19 23:09:51,314 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-02-19 23:09:51,842 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2021-02-19 23:09:52,931 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2021-02-19 23:09:53,475 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-02-19 23:09:54,175 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-02-19 23:09:54,709 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-02-19 23:09:55,835 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-02-19 23:09:56,407 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2021-02-19 23:09:57,458 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-02-19 23:09:58,021 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-02-19 23:09:58,737 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-02-19 23:09:59,314 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-19 23:10:00,074 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-02-19 23:10:00,689 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-02-19 23:10:02,043 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-19 23:10:02,675 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-19 23:10:04,006 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-02-19 23:10:04,583 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-02-19 23:10:05,457 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-02-19 23:10:06,149 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-02-19 23:10:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:10:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:10:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:10:12,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:10:12,097 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:10:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:10:12,098 INFO L82 PathProgramCache]: Analyzing trace with hash -460678397, now seen corresponding path program 24 times [2021-02-19 23:10:12,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:10:12,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080311281] [2021-02-19 23:10:12,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:10:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:10:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 330 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:10:12,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080311281] [2021-02-19 23:10:12,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855350698] [2021-02-19 23:10:12,847 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:10:12,901 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-02-19 23:10:12,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:10:12,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 30 conjunts are in the unsatisfiable core [2021-02-19 23:10:12,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:10:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 330 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:10:14,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:10:14,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 18 [2021-02-19 23:10:14,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392237129] [2021-02-19 23:10:14,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 23:10:14,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:10:14,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 23:10:14,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-02-19 23:10:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:10:14,305 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:10:14,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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) [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:10:14,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:10:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:10:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:10:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 23:10:14,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable268 [2021-02-19 23:10:14,642 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:10:14,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:10:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1890270111, now seen corresponding path program 25 times [2021-02-19 23:10:14,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:10:14,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430319279] [2021-02-19 23:10:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:10:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:10:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:10:26,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430319279] [2021-02-19 23:10:26,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125985099] [2021-02-19 23:10:26,293 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:10:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:10:26,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 117 conjunts are in the unsatisfiable core [2021-02-19 23:10:26,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:10:37,709 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:10:39,276 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:40,235 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:10:40,789 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:41,383 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:41,961 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:42,621 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:43,265 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:43,949 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:44,628 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:45,305 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:45,975 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:46,690 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:47,430 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:48,143 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:48,877 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:49,635 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:50,379 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:51,182 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:51,895 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:52,694 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:53,464 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:54,287 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-02-19 23:10:55,113 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:10:55,966 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-02-19 23:10:56,809 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:10:56,871 INFO L354 Elim1Store]: treesize reduction 1092, result has 0.1 percent of original size [2021-02-19 23:10:56,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 174 treesize of output 62 [2021-02-19 23:10:56,880 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:10:56,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:10:56,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:10:56,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:177, output treesize:10 [2021-02-19 23:10:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:10:58,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:10:58,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 122 [2021-02-19 23:10:58,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637497681] [2021-02-19 23:10:58,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 122 states [2021-02-19 23:10:58,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:10:58,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2021-02-19 23:10:58,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=759, Invalid=14003, Unknown=0, NotChecked=0, Total=14762 [2021-02-19 23:10:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:10:58,415 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:10:58,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 122 states, 122 states have (on average 1.6967213114754098) internal successors, (207), 122 states have internal predecessors, (207), 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) [2021-02-19 23:10:58,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:10:58,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:58,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 23:10:58,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:11:00,987 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2021-02-19 23:11:01,604 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2021-02-19 23:11:02,205 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2021-02-19 23:11:03,085 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2021-02-19 23:11:03,767 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2021-02-19 23:11:04,418 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2021-02-19 23:11:05,345 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2021-02-19 23:11:05,973 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2021-02-19 23:11:06,575 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2021-02-19 23:11:07,451 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-02-19 23:11:08,102 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-02-19 23:11:08,727 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2021-02-19 23:11:09,609 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-02-19 23:11:10,262 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-02-19 23:11:10,894 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2021-02-19 23:11:11,752 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-02-19 23:11:12,450 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-02-19 23:11:13,122 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-02-19 23:11:13,956 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2021-02-19 23:11:14,638 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2021-02-19 23:11:15,328 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-02-19 23:11:16,215 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-02-19 23:11:16,924 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-02-19 23:11:17,632 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-02-19 23:11:18,534 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-02-19 23:11:19,273 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-02-19 23:11:19,998 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2021-02-19 23:11:20,985 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:11:21,779 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-02-19 23:11:22,562 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-02-19 23:11:23,586 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2021-02-19 23:11:24,337 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2021-02-19 23:11:25,078 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2021-02-19 23:11:26,037 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 23:11:26,738 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 23:11:27,487 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2021-02-19 23:11:28,471 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2021-02-19 23:11:29,286 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2021-02-19 23:11:30,112 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-02-19 23:11:31,164 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-02-19 23:11:32,058 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-02-19 23:11:33,015 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2021-02-19 23:11:36,597 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2021-02-19 23:11:37,325 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-02-19 23:11:39,236 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-02-19 23:11:40,133 WARN L202 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-02-19 23:11:41,325 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-02-19 23:11:42,206 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-02-19 23:11:44,122 WARN L202 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2021-02-19 23:11:44,958 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-02-19 23:11:46,977 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-02-19 23:11:47,830 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-02-19 23:11:49,046 WARN L202 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-02-19 23:11:49,879 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2021-02-19 23:11:51,129 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-19 23:11:52,015 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-02-19 23:11:53,205 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-02-19 23:11:54,158 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-02-19 23:11:55,575 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-02-19 23:11:56,546 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-02-19 23:11:57,843 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-19 23:11:58,762 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-02-19 23:11:59,620 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-02-19 23:12:00,401 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-19 23:12:02,160 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-19 23:12:03,045 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-02-19 23:12:04,568 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2021-02-19 23:12:05,423 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-19 23:12:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:12:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 23:12:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-02-19 23:12:13,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:12:13,124 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:12:13,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:12:13,125 INFO L82 PathProgramCache]: Analyzing trace with hash -970949196, now seen corresponding path program 26 times [2021-02-19 23:12:13,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:12:13,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349248263] [2021-02-19 23:12:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:12:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:12:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 376 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:12:13,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349248263] [2021-02-19 23:12:13,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135006408] [2021-02-19 23:12:13,916 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:12:13,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:12:13,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:12:13,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjunts are in the unsatisfiable core [2021-02-19 23:12:13,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:12:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 376 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:12:15,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:12:15,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 19 [2021-02-19 23:12:15,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417603483] [2021-02-19 23:12:15,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-19 23:12:15,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:12:15,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-19 23:12:15,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-02-19 23:12:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:12:15,546 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:12:15,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.105263157894737) internal successors, (116), 19 states have internal predecessors, (116), 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) [2021-02-19 23:12:15,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:12:15,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:15,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:15,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:12:15,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-02-19 23:12:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:12:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 23:12:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-02-19 23:12:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 23:12:15,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272,28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:12:15,855 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:12:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:12:15,855 INFO L82 PathProgramCache]: Analyzing trace with hash -42882926, now seen corresponding path program 27 times [2021-02-19 23:12:15,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:12:15,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177442321] [2021-02-19 23:12:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:12:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:12:19,269 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-02-19 23:12:19,766 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 23:12:20,293 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-19 23:12:20,595 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-19 23:12:20,902 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-02-19 23:12:21,223 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-19 23:12:21,487 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-02-19 23:12:21,759 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:12:22,024 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 23:12:22,327 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 23:12:22,611 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 23:12:22,914 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-19 23:12:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:12:30,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177442321] [2021-02-19 23:12:30,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676925156] [2021-02-19 23:12:30,245 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:12:30,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-02-19 23:12:30,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:12:30,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 127 conjunts are in the unsatisfiable core [2021-02-19 23:12:30,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:12:40,967 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 23:12:42,121 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 23:12:42,773 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 23:12:43,430 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:12:44,086 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-19 23:12:44,747 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-19 23:12:45,440 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-02-19 23:12:46,199 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-19 23:12:46,948 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-19 23:12:47,566 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-02-19 23:12:48,215 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-19 23:12:48,993 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-19 23:12:49,681 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-19 23:12:50,440 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-19 23:12:51,203 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-19 23:12:51,996 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-19 23:12:52,741 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-19 23:12:53,529 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-19 23:12:54,334 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-19 23:12:55,155 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-19 23:12:55,972 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-02-19 23:13:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:24,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 23:13:25,944 INFO L244 Elim1Store]: Index analysis took 1477 ms [2021-02-19 23:13:28,045 WARN L202 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 237 [2021-02-19 23:13:28,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:13:28,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 231 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 45 case distinctions, treesize of input 182 treesize of output 606 [2021-02-19 23:13:35,078 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1376 [2021-02-19 23:13:35,249 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1641 DAG size of output: 1631 [2021-02-19 23:13:36,460 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 2323 DAG size of output: 2278 [2021-02-19 23:13:36,711 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 2323 DAG size of output: 2278 [2021-02-19 23:13:37,238 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 2346 DAG size of output: 3471 [2021-02-19 23:13:37,703 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 2218 DAG size of output: 2633 [2021-02-19 23:13:37,923 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 2155 DAG size of output: 2134 [2021-02-19 23:13:38,046 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 880 DAG size of output: 1024 [2021-02-19 23:13:38,164 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 1093 [2021-02-19 23:13:41,308 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1385 [2021-02-19 23:13:41,453 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 2013 DAG size of output: 1850 [2021-02-19 23:13:41,678 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 2474 DAG size of output: 2337 [2021-02-19 23:13:41,959 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 1533 DAG size of output: 1916 [2021-02-19 23:13:45,850 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 2591 DAG size of output: 2512 [2021-02-19 23:13:46,422 WARN L202 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 4590 DAG size of output: 4398 [2021-02-19 23:13:46,852 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 2098 DAG size of output: 2912 [2021-02-19 23:13:47,237 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 1993 DAG size of output: 2574 [2021-02-19 23:13:49,805 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1710 DAG size of output: 1599 [2021-02-19 23:13:53,460 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 4062 DAG size of output: 3897 [2021-02-19 23:13:53,834 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 1865 DAG size of output: 2231 [2021-02-19 23:13:54,018 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 1700 [2021-02-19 23:13:54,232 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1220 DAG size of output: 1503 [2021-02-19 23:13:57,475 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 2014 DAG size of output: 1940 [2021-02-19 23:14:00,253 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1733 DAG size of output: 1633 [2021-02-19 23:14:00,637 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 3342 DAG size of output: 3187 [2021-02-19 23:14:00,801 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1501 DAG size of output: 1485 [2021-02-19 23:14:18,541 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 3524 DAG size of output: 3392 [2021-02-19 23:14:19,308 WARN L202 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 5897 DAG size of output: 5610 [2021-02-19 23:14:20,659 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 8761 DAG size of output: 8360 [2021-02-19 23:14:22,739 WARN L202 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 11503 DAG size of output: 10913 [2021-02-19 23:14:23,293 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 2172 DAG size of output: 2863 [2021-02-19 23:14:23,421 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 1168 [2021-02-19 23:14:27,463 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 2172 DAG size of output: 2017 [2021-02-19 23:14:32,529 WARN L202 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 4887 DAG size of output: 4632 [2021-02-19 23:14:35,411 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 14878 DAG size of output: 14088 [2021-02-19 23:14:38,343 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 14878 DAG size of output: 14089 [2021-02-19 23:14:41,366 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 14894 DAG size of output: 14106 [2021-02-19 23:14:44,188 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 14106 DAG size of output: 13845 [2021-02-19 23:14:46,225 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 10767 DAG size of output: 10753 [2021-02-19 23:14:47,341 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 4211 DAG size of output: 5744 [2021-02-19 23:14:48,357 WARN L202 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 4014 DAG size of output: 4887 [2021-02-19 23:14:49,178 WARN L202 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 3326 DAG size of output: 3891 [2021-02-19 23:14:59,508 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 5469 DAG size of output: 4907 [2021-02-19 23:15:00,988 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 8281 DAG size of output: 7517 [2021-02-19 23:15:02,031 WARN L202 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 3995 DAG size of output: 4831 [2021-02-19 23:15:02,878 WARN L202 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 3056 DAG size of output: 4054 [2021-02-19 23:15:03,253 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 2455 DAG size of output: 2146 [2021-02-19 23:15:12,116 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 3291 DAG size of output: 2785 [2021-02-19 23:15:12,469 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 2479 DAG size of output: 2318 Received shutdown request... [2021-02-19 23:15:26,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:15:26,954 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 23:15:26,959 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 23:15:26,959 INFO L202 PluginConnector]: Adding new model producer-consumer-counter-2-Q4m.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:15:26 BasicIcfg [2021-02-19 23:15:26,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 23:15:26,960 INFO L168 Benchmark]: Toolchain (without parser) took 550575.40 ms. Allocated memory was 369.1 MB in the beginning and 2.8 GB in the end (delta: 2.4 GB). Free memory was 349.4 MB in the beginning and 2.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 369.1 MB. Free memory was 350.5 MB in the beginning and 350.5 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.27 ms. Allocated memory is still 369.1 MB. Free memory was 348.9 MB in the beginning and 347.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 INFO L168 Benchmark]: Boogie Preprocessor took 15.41 ms. Allocated memory is still 369.1 MB. Free memory was 347.4 MB in the beginning and 346.4 MB in the end (delta: 972.5 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 INFO L168 Benchmark]: RCFGBuilder took 286.66 ms. Allocated memory is still 369.1 MB. Free memory was 346.4 MB in the beginning and 333.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 INFO L168 Benchmark]: TraceAbstraction took 550242.76 ms. Allocated memory was 369.1 MB in the beginning and 2.8 GB in the end (delta: 2.4 GB). Free memory was 333.6 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-02-19 23:15:26,960 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 0.14 ms. Allocated memory is still 369.1 MB. Free memory was 350.5 MB in the beginning and 350.5 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.27 ms. Allocated memory is still 369.1 MB. Free memory was 348.9 MB in the beginning and 347.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.41 ms. Allocated memory is still 369.1 MB. Free memory was 347.4 MB in the beginning and 346.4 MB in the end (delta: 972.5 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 286.66 ms. Allocated memory is still 369.1 MB. Free memory was 346.4 MB in the beginning and 333.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 550242.76 ms. Allocated memory was 369.1 MB in the beginning and 2.8 GB in the end (delta: 2.4 GB). Free memory was 333.6 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 63). Cancelled while PartialOrderCegarLoop was analyzing trace of length 116 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 550.1s, OverallIterations: 28, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 137.5s InterpolantComputationTime, 3686 NumberOfCodeBlocks, 3686 NumberOfCodeBlocksAsserted, 165 NumberOfCheckSat, 3633 ConstructedInterpolants, 33 QuantifiedInterpolants, 7719897 SizeOfPredicates, 171 NumberOfNonLiveVariables, 4660 ConjunctsInSsa, 1128 ConjunctsInUnsatCore, 53 InterpolantComputations, 1 PerfectInterpolantSequences, 3717/14003 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown