/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-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-20 01:39:16,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-20 01:39:16,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-20 01:39:16,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-20 01:39:16,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-20 01:39:16,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-20 01:39:16,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-20 01:39:16,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-20 01:39:16,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-20 01:39:16,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-20 01:39:16,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-20 01:39:16,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-20 01:39:16,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-20 01:39:16,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-20 01:39:16,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-20 01:39:16,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-20 01:39:16,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-20 01:39:16,963 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-New_States.epf [2021-02-20 01:39:16,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-20 01:39:16,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-20 01:39:16,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-20 01:39:16,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-20 01:39:16,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-20 01:39:16,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-20 01:39:16,982 INFO L138 SettingsManager]: * Use SBE=true [2021-02-20 01:39:16,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-20 01:39:16,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-20 01:39:16,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-20 01:39:16,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-20 01:39:16,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-20 01:39:16,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-20 01:39:16,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-20 01:39:16,987 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-20 01:39:16,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-20 01:39:17,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-20 01:39:17,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-20 01:39:17,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-20 01:39:17,280 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-20 01:39:17,280 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-20 01:39:17,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-02-20 01:39:17,281 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-02-20 01:39:17,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-20 01:39:17,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-20 01:39:17,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-20 01:39:17,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-20 01:39:17,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-20 01:39:17,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-20 01:39:17,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-20 01:39:17,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-20 01:39:17,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-20 01:39:17,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/1) ... [2021-02-20 01:39:17,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-20 01:39:17,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-20 01:39:17,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-20 01:39:17,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-20 01:39:17,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (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 [2021-02-20 01:39:17,406 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-20 01:39:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-20 01:39:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-20 01:39:17,406 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-20 01:39:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-20 01:39:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-20 01:39:17,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-20 01:39:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-20 01:39:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-20 01:39:17,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-20 01:39:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-20 01:39:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-20 01:39:17,409 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-20 01:39:17,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-20 01:39:17,587 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-20 01:39:17,588 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 01:39:17 BoogieIcfgContainer [2021-02-20 01:39:17,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-20 01:39:17,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-20 01:39:17,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-20 01:39:17,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-20 01:39:17,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 01:39:17" (1/2) ... [2021-02-20 01:39:17,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530b638e and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 01:39:17, skipping insertion in model container [2021-02-20 01:39:17,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 01:39:17" (2/2) ... [2021-02-20 01:39:17,593 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-02-20 01:39:17,596 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-20 01:39:17,596 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-20 01:39:17,615 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-20 01:39:17,616 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-20 01:39:17,660 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-20 01:39:17,680 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) [2021-02-20 01:39:17,758 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-20 01:39:17,758 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-20 01:39:17,758 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-20 01:39:17,758 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-20 01:39:17,758 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-20 01:39:17,759 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-20 01:39:17,759 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-20 01:39:17,759 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-20 01:39:17,851 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1488928588, now seen corresponding path program 1 times [2021-02-20 01:39:17,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:17,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310915207] [2021-02-20 01:39:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:17,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310915207] [2021-02-20 01:39:17,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 01:39:17,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 01:39:17,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574917539] [2021-02-20 01:39:17,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 01:39:17,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:17,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 01:39:17,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 01:39:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:17,999 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:18,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:18,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:18,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-20 01:39:18,053 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash 343342930, now seen corresponding path program 1 times [2021-02-20 01:39:18,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:18,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063746809] [2021-02-20 01:39:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 01:39:18,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063746809] [2021-02-20 01:39:18,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 01:39:18,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-20 01:39:18,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508390779] [2021-02-20 01:39:18,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-20 01:39:18,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:18,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-20 01:39:18,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-20 01:39:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:18,086 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:18,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:18,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:18,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:18,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-20 01:39:18,114 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:18,114 INFO L82 PathProgramCache]: Analyzing trace with hash -322513808, now seen corresponding path program 1 times [2021-02-20 01:39:18,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:18,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918407660] [2021-02-20 01:39:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:18,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918407660] [2021-02-20 01:39:18,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380479779] [2021-02-20 01:39:18,314 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 [2021-02-20 01:39:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:18,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-20 01:39:18,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:18,544 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-02-20 01:39:18,545 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2021-02-20 01:39:18,550 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:18,554 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:18,556 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:18,556 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:3 [2021-02-20 01:39:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:18,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:18,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-20 01:39:18,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685418610] [2021-02-20 01:39:18,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-20 01:39:18,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:18,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-20 01:39:18,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-02-20 01:39:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:18,601 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:18,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:18,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:18,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:18,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:19,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:19,000 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:19,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:19,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1096848398, now seen corresponding path program 2 times [2021-02-20 01:39:19,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:19,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086313579] [2021-02-20 01:39:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:19,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086313579] [2021-02-20 01:39:19,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323927293] [2021-02-20 01:39:19,066 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 [2021-02-20 01:39:19,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 01:39:19,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:19,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-20 01:39:19,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:19,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:19,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-20 01:39:19,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685816370] [2021-02-20 01:39:19,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-20 01:39:19,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:19,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-20 01:39:19,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-20 01:39:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:19,218 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:19,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:19,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:19,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:19,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:19,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:19,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:19,592 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:19,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:19,592 INFO L82 PathProgramCache]: Analyzing trace with hash 314394834, now seen corresponding path program 1 times [2021-02-20 01:39:19,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:19,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077677139] [2021-02-20 01:39:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 01:39:19,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077677139] [2021-02-20 01:39:19,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805652183] [2021-02-20 01:39:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:19,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-20 01:39:19,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 01:39:19,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:19,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-02-20 01:39:19,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073627011] [2021-02-20 01:39:19,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-20 01:39:19,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:19,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-20 01:39:19,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-02-20 01:39:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:19,764 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:19,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:19,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:19,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:19,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:19,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:19,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:20,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:20,058 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:20,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:20,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1021598192, now seen corresponding path program 2 times [2021-02-20 01:39:20,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:20,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419645917] [2021-02-20 01:39:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:20,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419645917] [2021-02-20 01:39:20,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124434090] [2021-02-20 01:39:20,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:20,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 01:39:20,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:20,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 35 conjunts are in the unsatisfiable core [2021-02-20 01:39:20,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:20,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:20,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:20,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:20,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-02-20 01:39:20,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 01:39:20,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:20,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:20,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:3 [2021-02-20 01:39:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:20,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:20,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2021-02-20 01:39:20,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816954746] [2021-02-20 01:39:20,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-20 01:39:20,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:20,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-20 01:39:20,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-02-20 01:39:20,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:20,756 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:20,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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) [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:20,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:21,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-02-20 01:39:21,378 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:21,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2039192462, now seen corresponding path program 3 times [2021-02-20 01:39:21,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:21,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712185451] [2021-02-20 01:39:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:21,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712185451] [2021-02-20 01:39:21,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660446392] [2021-02-20 01:39:21,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:21,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-20 01:39:21,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:21,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-02-20 01:39:21,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:21,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:21,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-02-20 01:39:21,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601771507] [2021-02-20 01:39:21,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-20 01:39:21,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-20 01:39:21,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-02-20 01:39:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:21,679 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:21,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:21,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:22,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:22,290 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:22,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1491562414, now seen corresponding path program 4 times [2021-02-20 01:39:22,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:22,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356529982] [2021-02-20 01:39:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 01:39:22,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356529982] [2021-02-20 01:39:22,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785835984] [2021-02-20 01:39:22,366 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:22,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 01:39:22,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:22,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-02-20 01:39:22,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 01:39:22,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:22,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-02-20 01:39:22,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052652999] [2021-02-20 01:39:22,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-20 01:39:22,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:22,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-20 01:39:22,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-20 01:39:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:22,502 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:22,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:22,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:22,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:22,814 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:22,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1516002448, now seen corresponding path program 5 times [2021-02-20 01:39:22,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:22,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489725820] [2021-02-20 01:39:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:23,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489725820] [2021-02-20 01:39:23,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697072686] [2021-02-20 01:39:23,293 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:23,320 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-02-20 01:39:23,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:23,321 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-02-20 01:39:23,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:23,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:23,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:23,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:23,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:23,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:23,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-02-20 01:39:23,941 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 01:39:23,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:23,947 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:23,947 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:3 [2021-02-20 01:39:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:23,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:23,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-02-20 01:39:23,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033231453] [2021-02-20 01:39:23,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-20 01:39:23,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:23,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-20 01:39:23,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2021-02-20 01:39:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:23,977 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:23,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.193548387096774) internal successors, (68), 31 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) [2021-02-20 01:39:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:23,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:25,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-02-20 01:39:25,330 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:25,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1278526164, now seen corresponding path program 6 times [2021-02-20 01:39:25,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:25,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829240308] [2021-02-20 01:39:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:25,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829240308] [2021-02-20 01:39:25,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567612731] [2021-02-20 01:39:25,941 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:25,985 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-02-20 01:39:25,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:25,986 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 58 conjunts are in the unsatisfiable core [2021-02-20 01:39:25,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:26,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:26,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:26,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:26,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 43 treesize of output 107 [2021-02-20 01:39:27,036 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-02-20 01:39:27,206 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 23 [2021-02-20 01:39:27,206 INFO L628 ElimStorePlain]: treesize reduction 1744, result has 1.7 percent of original size [2021-02-20 01:39:27,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-20 01:39:27,213 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:19 [2021-02-20 01:39:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:27,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:27,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 37 [2021-02-20 01:39:27,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849039457] [2021-02-20 01:39:27,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-20 01:39:27,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:27,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-20 01:39:27,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2021-02-20 01:39:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:27,301 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:27,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.027027027027027) internal successors, (75), 37 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) [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:27,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:28,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:28,658 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:28,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1485372982, now seen corresponding path program 7 times [2021-02-20 01:39:28,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:28,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094412420] [2021-02-20 01:39:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 25 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:28,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094412420] [2021-02-20 01:39:28,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825484602] [2021-02-20 01:39:28,777 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 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 [2021-02-20 01:39:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:28,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-20 01:39:28,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:29,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:29,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 31 [2021-02-20 01:39:29,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999104323] [2021-02-20 01:39:29,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-20 01:39:29,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:29,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-20 01:39:29,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2021-02-20 01:39:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:29,115 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:29,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 31 states have internal predecessors, (73), 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) [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:30,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:30,226 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:30,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:30,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1052069936, now seen corresponding path program 8 times [2021-02-20 01:39:30,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:30,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609357734] [2021-02-20 01:39:30,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:30,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609357734] [2021-02-20 01:39:30,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857963913] [2021-02-20 01:39:30,372 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 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 [2021-02-20 01:39:30,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 01:39:30,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:30,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-20 01:39:30,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-20 01:39:30,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:30,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 36 [2021-02-20 01:39:30,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395591629] [2021-02-20 01:39:30,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-20 01:39:30,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:30,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-20 01:39:30,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2021-02-20 01:39:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:30,746 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:30,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.4722222222222223) internal successors, (89), 36 states have internal predecessors, (89), 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) [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:30,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:31,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-02-20 01:39:31,392 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:31,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1050253006, now seen corresponding path program 9 times [2021-02-20 01:39:31,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:31,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212820605] [2021-02-20 01:39:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:31,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212820605] [2021-02-20 01:39:31,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730189329] [2021-02-20 01:39:31,597 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 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 [2021-02-20 01:39:31,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-02-20 01:39:31,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:31,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-20 01:39:31,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:32,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:32,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 38 [2021-02-20 01:39:32,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756139666] [2021-02-20 01:39:32,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-02-20 01:39:32,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:32,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-02-20 01:39:32,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1133, Unknown=0, NotChecked=0, Total=1406 [2021-02-20 01:39:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:32,035 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:32,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.289473684210526) internal successors, (87), 38 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) [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:32,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:32,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-02-20 01:39:32,446 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:32,446 INFO L82 PathProgramCache]: Analyzing trace with hash -695816724, now seen corresponding path program 10 times [2021-02-20 01:39:32,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:32,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55300899] [2021-02-20 01:39:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:33,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55300899] [2021-02-20 01:39:33,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659616932] [2021-02-20 01:39:33,147 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 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 [2021-02-20 01:39:33,179 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 01:39:33,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:33,181 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 80 conjunts are in the unsatisfiable core [2021-02-20 01:39:33,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:34,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:34,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:34,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:34,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:34,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 37 [2021-02-20 01:39:34,238 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 01:39:34,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:34,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:34,249 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:115, output treesize:7 [2021-02-20 01:39:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:34,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:34,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 37 [2021-02-20 01:39:34,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388053008] [2021-02-20 01:39:34,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-20 01:39:34,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:34,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-20 01:39:34,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1234, Unknown=0, NotChecked=0, Total=1332 [2021-02-20 01:39:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:34,311 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:34,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.2432432432432434) internal successors, (83), 37 states have internal predecessors, (83), 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) [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:35,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-02-20 01:39:35,290 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:35,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:35,290 INFO L82 PathProgramCache]: Analyzing trace with hash 663385482, now seen corresponding path program 11 times [2021-02-20 01:39:35,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:35,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481972765] [2021-02-20 01:39:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 64 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:35,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481972765] [2021-02-20 01:39:35,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231677308] [2021-02-20 01:39:35,486 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 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 [2021-02-20 01:39:35,536 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-02-20 01:39:35,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:35,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjunts are in the unsatisfiable core [2021-02-20 01:39:35,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:36,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:36,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 43 [2021-02-20 01:39:36,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192124490] [2021-02-20 01:39:36,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-20 01:39:36,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:36,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-20 01:39:36,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2021-02-20 01:39:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:36,071 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:36,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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) [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:36,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:36,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:36,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:37,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:37,914 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:37,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1037235184, now seen corresponding path program 12 times [2021-02-20 01:39:37,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:37,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248541233] [2021-02-20 01:39:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 85 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:38,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248541233] [2021-02-20 01:39:38,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530673937] [2021-02-20 01:39:38,159 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 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 [2021-02-20 01:39:38,193 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-02-20 01:39:38,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:38,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-20 01:39:38,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 85 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:38,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:38,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 48 [2021-02-20 01:39:38,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638832945] [2021-02-20 01:39:38,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-02-20 01:39:38,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:38,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-02-20 01:39:38,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=1827, Unknown=0, NotChecked=0, Total=2256 [2021-02-20 01:39:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:38,720 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:38,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.2291666666666665) internal successors, (107), 48 states have internal predecessors, (107), 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) [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:38,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:38,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:39,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:39,216 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:39,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1873003122, now seen corresponding path program 13 times [2021-02-20 01:39:39,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:39,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274501028] [2021-02-20 01:39:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 85 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:39,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274501028] [2021-02-20 01:39:39,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044557324] [2021-02-20 01:39:39,451 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 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 [2021-02-20 01:39:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:39,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 26 conjunts are in the unsatisfiable core [2021-02-20 01:39:39,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 85 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:40,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:40,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 50 [2021-02-20 01:39:40,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408065973] [2021-02-20 01:39:40,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-02-20 01:39:40,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:40,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-02-20 01:39:40,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2021-02-20 01:39:40,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:40,078 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:40,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 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) [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:40,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:40,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 01:39:40,552 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:40,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1706661804, now seen corresponding path program 14 times [2021-02-20 01:39:40,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:40,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709313402] [2021-02-20 01:39:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:41,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709313402] [2021-02-20 01:39:41,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712123248] [2021-02-20 01:39:41,607 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 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 [2021-02-20 01:39:41,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 01:39:41,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:41,644 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 104 conjunts are in the unsatisfiable core [2021-02-20 01:39:41,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:43,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:43,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 01:39:43,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 66 disjoint index pairs (out of 105 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 46 [2021-02-20 01:39:43,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 01:39:43,206 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:43,207 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-20 01:39:43,207 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:142, output treesize:7 [2021-02-20 01:39:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:43,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:43,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 46 [2021-02-20 01:39:43,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123127226] [2021-02-20 01:39:43,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-02-20 01:39:43,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:43,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-02-20 01:39:43,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1948, Unknown=0, NotChecked=0, Total=2070 [2021-02-20 01:39:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:43,298 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:43,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.1956521739130435) internal successors, (101), 46 states have internal predecessors, (101), 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) [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:43,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:44,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-02-20 01:39:44,650 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1495851594, now seen corresponding path program 15 times [2021-02-20 01:39:44,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:44,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045051218] [2021-02-20 01:39:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 121 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:44,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045051218] [2021-02-20 01:39:44,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503603408] [2021-02-20 01:39:44,952 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 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 [2021-02-20 01:39:44,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-02-20 01:39:44,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:44,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-20 01:39:44,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 144 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:45,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:45,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 55 [2021-02-20 01:39:45,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283540293] [2021-02-20 01:39:45,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-02-20 01:39:45,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:45,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-02-20 01:39:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2021-02-20 01:39:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:45,698 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:45,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.2) internal successors, (121), 55 states have internal predecessors, (121), 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) [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:45,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:45,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:48,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-02-20 01:39:48,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-02-20 01:39:48,478 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:48,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:48,478 INFO L82 PathProgramCache]: Analyzing trace with hash 245158064, now seen corresponding path program 16 times [2021-02-20 01:39:48,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:48,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844272487] [2021-02-20 01:39:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 148 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:48,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844272487] [2021-02-20 01:39:48,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591410472] [2021-02-20 01:39:48,826 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 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 [2021-02-20 01:39:48,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 01:39:48,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:48,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-20 01:39:48,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 169 proven. 169 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-20 01:39:49,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:49,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 30] total 60 [2021-02-20 01:39:49,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173198830] [2021-02-20 01:39:49,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-02-20 01:39:49,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:49,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-02-20 01:39:49,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=3069, Unknown=0, NotChecked=0, Total=3540 [2021-02-20 01:39:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:49,596 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:49,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.283333333333333) internal successors, (137), 60 states have internal predecessors, (137), 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) [2021-02-20 01:39:49,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:49,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:49,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:49,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:49,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-02-20 01:39:49,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-02-20 01:39:50,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-20 01:39:50,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-02-20 01:39:50,674 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:50,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1834917198, now seen corresponding path program 17 times [2021-02-20 01:39:50,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:50,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884733059] [2021-02-20 01:39:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 148 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:51,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884733059] [2021-02-20 01:39:51,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929782690] [2021-02-20 01:39:51,065 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 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 [2021-02-20 01:39:51,104 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-02-20 01:39:51,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:51,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 32 conjunts are in the unsatisfiable core [2021-02-20 01:39:51,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 148 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:51,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 01:39:51,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 62 [2021-02-20 01:39:51,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937016690] [2021-02-20 01:39:51,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-02-20 01:39:51,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 01:39:51,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-02-20 01:39:51,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=717, Invalid=3065, Unknown=0, NotChecked=0, Total=3782 [2021-02-20 01:39:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:51,921 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 01:39:51,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.1774193548387095) internal successors, (135), 62 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) [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-02-20 01:39:51,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 01:39:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 01:39:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-20 01:39:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 01:39:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-20 01:39:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-20 01:39:52,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-02-20 01:39:52,571 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 01:39:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 01:39:52,571 INFO L82 PathProgramCache]: Analyzing trace with hash 585087596, now seen corresponding path program 18 times [2021-02-20 01:39:52,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 01:39:52,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809996453] [2021-02-20 01:39:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 01:39:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 01:39:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 398 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 01:39:54,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809996453] [2021-02-20 01:39:54,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427075714] [2021-02-20 01:39:54,167 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 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 [2021-02-20 01:39:54,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-02-20 01:39:54,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 01:39:54,214 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 133 conjunts are in the unsatisfiable core [2021-02-20 01:39:54,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 01:39:57,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:57,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-20 01:39:58,020 INFO L244 Elim1Store]: Index analysis took 214 ms [2021-02-20 01:39:59,492 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 503 [2021-02-20 01:39:59,493 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 01:39:59,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 215 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 110 case distinctions, treesize of input 173 treesize of output 1135 [2021-02-20 01:40:00,943 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 6511 DAG size of output: 4447 [2021-02-20 01:40:01,733 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 6531 DAG size of output: 4467 [2021-02-20 01:40:06,848 WARN L202 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 27427 DAG size of output: 15797 [2021-02-20 01:40:10,566 WARN L202 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 27453 DAG size of output: 15823 [2021-02-20 01:40:37,786 WARN L202 SmtUtils]: Spent 15.91 s on a formula simplification. DAG size of input: 122060 DAG size of output: 63725 [2021-02-20 01:41:00,809 WARN L202 SmtUtils]: Spent 15.46 s on a formula simplification. DAG size of input: 122099 DAG size of output: 63764 [2021-02-20 01:41:44,274 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-20 01:42:00,528 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-02-20 01:42:05,698 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-20 01:42:10,641 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-02-20 01:42:14,522 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-20 01:44:52,592 WARN L202 SmtUtils]: Spent 2.56 m on a formula simplification. DAG size of input: 768585 DAG size of output: 561732