/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/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 23:53:38,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 23:53:38,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 23:53:38,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 23:53:38,862 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 [2021-02-19 23:53:38,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 23:53:38,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 23:53:38,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 23:53:38,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 23:53:38,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 23:53:38,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 23:53:38,899 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 23:53:38,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 23:53:38,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 23:53:38,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 23:53:38,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 23:53:38,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 23:53:38,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 23:53:38,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 23:53:38,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 23:53:38,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 23:53:38,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 23:53:38,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 23:53:38,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 23:53:38,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 23:53:38,904 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-19 23:53:38,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 23:53:39,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 23:53:39,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 23:53:39,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 23:53:39,212 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 23:53:39,213 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 23:53:39,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-02-19 23:53:39,214 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-02-19 23:53:39,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 23:53:39,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 23:53:39,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 23:53:39,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 23:53:39,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 23:53:39,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 23:53:39,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 23:53:39,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 23:53:39,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 23:53:39,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... [2021-02-19 23:53:39,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 23:53:39,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 23:53:39,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 23:53:39,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 23:53:39,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 23:53:39,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 23:53:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 23:53:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 23:53:39,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 23:53:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 23:53:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 23:53:39,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 23:53:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 23:53:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 23:53:39,371 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 23:53:39,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 23:53:39,672 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-19 23:53:39,673 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-02-19 23:53:39,673 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-02-19 23:53:39,674 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:53:39 BoogieIcfgContainer [2021-02-19 23:53:39,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 23:53:39,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 23:53:39,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 23:53:39,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 23:53:39,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:39" (1/2) ... [2021-02-19 23:53:39,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f60049 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:53:39, skipping insertion in model container [2021-02-19 23:53:39,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:53:39" (2/2) ... [2021-02-19 23:53:39,686 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-02-19 23:53:39,690 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 23:53:39,690 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 23:53:39,693 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 23:53:39,694 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 23:53:39,753 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 23:53:39,766 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-02-19 23:53:39,808 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 23:53:39,808 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 23:53:39,808 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 23:53:39,808 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 23:53:39,808 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 23:53:39,809 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 23:53:39,809 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 23:53:39,809 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 [2021-02-19 23:53:39,837 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:39,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:39,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1962473559, now seen corresponding path program 1 times [2021-02-19 23:53:39,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:39,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425148785] [2021-02-19 23:53:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:39,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425148785] [2021-02-19 23:53:39,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:53:39,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 23:53:39,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140107533] [2021-02-19 23:53:39,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 23:53:39,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:39,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 23:53:39,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 23:53:39,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:39,990 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:39,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:39,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 23:53:40,055 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:40,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:40,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2089010987, now seen corresponding path program 1 times [2021-02-19 23:53:40,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:40,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726935482] [2021-02-19 23:53:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:40,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726935482] [2021-02-19 23:53:40,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865289185] [2021-02-19 23:53:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:40,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 23:53:40,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:40,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:40,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-02-19 23:53:40,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839659892] [2021-02-19 23:53:40,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 23:53:40,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:40,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 23:53:40,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 23:53:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,174 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:40,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:40,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:40,417 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash -334103658, now seen corresponding path program 1 times [2021-02-19 23:53:40,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:40,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760281378] [2021-02-19 23:53:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:40,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760281378] [2021-02-19 23:53:40,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739057466] [2021-02-19 23:53:40,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:40,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 23:53:40,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:40,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:40,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-02-19 23:53:40,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246319641] [2021-02-19 23:53:40,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 23:53:40,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:40,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 23:53:40,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 23:53:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,582 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:40,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:40,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:40,817 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:40,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1724585108, now seen corresponding path program 2 times [2021-02-19 23:53:40,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:40,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660448735] [2021-02-19 23:53:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:40,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660448735] [2021-02-19 23:53:40,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443405859] [2021-02-19 23:53:40,865 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 23:53:40,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:53:40,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:40,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 23:53:40,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:40,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:40,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-02-19 23:53:40,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841201719] [2021-02-19 23:53:40,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 23:53:40,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:40,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 23:53:40,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 23:53:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,931 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:40,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:40,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:41,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:41,157 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:41,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:41,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1119427414, now seen corresponding path program 3 times [2021-02-19 23:53:41,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:41,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160302769] [2021-02-19 23:53:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:41,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160302769] [2021-02-19 23:53:41,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429943443] [2021-02-19 23:53:41,229 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 23:53:41,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 23:53:41,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:41,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-02-19 23:53:41,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 23:53:41,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:41,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-02-19 23:53:41,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652159353] [2021-02-19 23:53:41,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 23:53:41,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:41,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 23:53:41,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-02-19 23:53:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:41,336 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:41,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:41,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:41,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:41,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:41,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:41,602 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:41,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash -460591916, now seen corresponding path program 4 times [2021-02-19 23:53:41,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:41,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925178985] [2021-02-19 23:53:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:41,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925178985] [2021-02-19 23:53:41,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224023275] [2021-02-19 23:53:41,666 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:41,698 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:53:41,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:41,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-19 23:53:41,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:41,831 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:53:41,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-02-19 23:53:41,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:53:41,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:53:41,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:53:41,896 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-02-19 23:53:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:41,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:41,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-02-19 23:53:41,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449680764] [2021-02-19 23:53:41,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 23:53:41,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:41,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 23:53:41,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-02-19 23:53:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:41,924 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:41,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:41,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:42,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:42,175 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:42,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:42,176 INFO L82 PathProgramCache]: Analyzing trace with hash 2098416406, now seen corresponding path program 5 times [2021-02-19 23:53:42,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:42,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022153209] [2021-02-19 23:53:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:42,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022153209] [2021-02-19 23:53:42,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109659738] [2021-02-19 23:53:42,254 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:42,285 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-02-19 23:53:42,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:42,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-02-19 23:53:42,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:42,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:42,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-02-19 23:53:42,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365211283] [2021-02-19 23:53:42,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 23:53:42,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:42,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 23:53:42,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-19 23:53:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:42,377 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:42,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 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) [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:42,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:42,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-02-19 23:53:42,694 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:42,694 INFO L82 PathProgramCache]: Analyzing trace with hash 627126645, now seen corresponding path program 6 times [2021-02-19 23:53:42,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:42,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124311553] [2021-02-19 23:53:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:42,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124311553] [2021-02-19 23:53:42,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133659617] [2021-02-19 23:53:42,780 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 23:53:42,809 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-02-19 23:53:42,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:42,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 23:53:42,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:42,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:42,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-02-19 23:53:42,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455466032] [2021-02-19 23:53:42,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 23:53:42,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:42,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 23:53:42,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-02-19 23:53:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:42,903 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:42,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:42,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:42,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:42,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:42,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:42,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:42,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:42,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:43,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-02-19 23:53:43,222 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:43,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1182136521, now seen corresponding path program 7 times [2021-02-19 23:53:43,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:43,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864563773] [2021-02-19 23:53:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:43,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864563773] [2021-02-19 23:53:43,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755051580] [2021-02-19 23:53:43,323 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:43,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-02-19 23:53:43,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:43,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:43,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-02-19 23:53:43,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607677356] [2021-02-19 23:53:43,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-19 23:53:43,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:43,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-19 23:53:43,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-19 23:53:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:43,432 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:43,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:43,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:43,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:43,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-02-19 23:53:43,776 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:43,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:43,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1434719819, now seen corresponding path program 8 times [2021-02-19 23:53:43,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:43,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84733387] [2021-02-19 23:53:43,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:43,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84733387] [2021-02-19 23:53:43,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532622485] [2021-02-19 23:53:43,896 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:43,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:53:43,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:43,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-19 23:53:43,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 23:53:44,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:44,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-02-19 23:53:44,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161182701] [2021-02-19 23:53:44,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-19 23:53:44,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:44,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-19 23:53:44,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-02-19 23:53:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:44,035 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:44,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:44,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:44,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:44,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:44,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-02-19 23:53:44,419 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:44,419 INFO L82 PathProgramCache]: Analyzing trace with hash -674867465, now seen corresponding path program 9 times [2021-02-19 23:53:44,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:44,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421041688] [2021-02-19 23:53:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:44,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421041688] [2021-02-19 23:53:44,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498084647] [2021-02-19 23:53:44,527 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:44,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 23:53:44,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:44,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-02-19 23:53:44,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:44,851 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-19 23:53:44,851 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:53:44,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-02-19 23:53:46,134 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:53:46,136 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:53:46,136 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:53:46,136 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-02-19 23:53:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:46,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:46,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-02-19 23:53:46,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389562971] [2021-02-19 23:53:46,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-19 23:53:46,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:46,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-19 23:53:46,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-02-19 23:53:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:46,143 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:46,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-02-19 23:53:46,436 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:46,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:46,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1405719029, now seen corresponding path program 10 times [2021-02-19 23:53:46,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:46,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208352786] [2021-02-19 23:53:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:46,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208352786] [2021-02-19 23:53:46,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822780919] [2021-02-19 23:53:46,520 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 23:53:46,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:53:46,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:46,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-19 23:53:46,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:46,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:46,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-02-19 23:53:46,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966101573] [2021-02-19 23:53:46,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 23:53:46,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 23:53:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-02-19 23:53:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:46,595 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:46,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:46,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable304 [2021-02-19 23:53:46,926 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:46,926 INFO L82 PathProgramCache]: Analyzing trace with hash 628344438, now seen corresponding path program 11 times [2021-02-19 23:53:46,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:46,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762857155] [2021-02-19 23:53:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-19 23:53:47,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762857155] [2021-02-19 23:53:47,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512908364] [2021-02-19 23:53:47,056 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:47,081 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-02-19 23:53:47,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:47,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-19 23:53:47,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:47,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:47,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 24 [2021-02-19 23:53:47,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173321260] [2021-02-19 23:53:47,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 23:53:47,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:47,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 23:53:47,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-19 23:53:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:47,296 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:47,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 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) [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:47,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:47,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:47,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable305 [2021-02-19 23:53:47,815 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:47,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1382794764, now seen corresponding path program 12 times [2021-02-19 23:53:47,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:47,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118795490] [2021-02-19 23:53:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-19 23:53:47,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118795490] [2021-02-19 23:53:47,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080148470] [2021-02-19 23:53:47,956 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:48,003 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-02-19 23:53:48,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:48,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-02-19 23:53:48,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:48,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:48,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2021-02-19 23:53:48,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404899224] [2021-02-19 23:53:48,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-19 23:53:48,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:48,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-19 23:53:48,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-02-19 23:53:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:48,260 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:48,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 26 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:53:48,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:48,847 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:48,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:48,847 INFO L82 PathProgramCache]: Analyzing trace with hash 696399414, now seen corresponding path program 13 times [2021-02-19 23:53:48,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:48,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346114167] [2021-02-19 23:53:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-19 23:53:48,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346114167] [2021-02-19 23:53:48,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970941254] [2021-02-19 23:53:48,990 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:49,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-19 23:53:49,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-19 23:53:49,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:53:49,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-02-19 23:53:49,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946946633] [2021-02-19 23:53:49,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-19 23:53:49,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:49,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-19 23:53:49,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-02-19 23:53:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:49,169 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:49,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:53:49,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:53:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:53:49,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:49,690 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:49,690 INFO L82 PathProgramCache]: Analyzing trace with hash 726909492, now seen corresponding path program 14 times [2021-02-19 23:53:49,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:49,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344033336] [2021-02-19 23:53:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:49,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344033336] [2021-02-19 23:53:49,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397289231] [2021-02-19 23:53:49,791 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:53:49,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 23:53:49,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:53:49,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-02-19 23:53:49,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:53:50,416 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-02-19 23:53:50,416 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:53:50,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-02-19 23:53:52,359 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1924 DAG size of output: 1553 [2021-02-19 23:53:54,344 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 3619 DAG size of output: 2867 [2021-02-19 23:53:54,572 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 3664 DAG size of output: 2912 [2021-02-19 23:53:54,800 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 3688 DAG size of output: 2936 [2021-02-19 23:53:55,025 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 3688 DAG size of output: 2936 [2021-02-19 23:53:55,278 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 3707 DAG size of output: 2955 [2021-02-19 23:53:55,506 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 2957 DAG size of output: 2919 [2021-02-19 23:53:55,844 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 2916 DAG size of output: 3238 [2021-02-19 23:53:56,013 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1269 DAG size of output: 1631 [2021-02-19 23:53:56,674 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1800 [2021-02-19 23:53:56,838 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1116 DAG size of output: 1584 [2021-02-19 23:53:57,003 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1112 DAG size of output: 1192 [2021-02-19 23:53:57,159 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1106 DAG size of output: 1162 [2021-02-19 23:53:57,310 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1103 DAG size of output: 1239 [2021-02-19 23:54:00,169 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 883 [2021-02-19 23:54:00,291 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1151 DAG size of output: 933 [2021-02-19 23:54:00,419 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 949 [2021-02-19 23:54:03,560 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1200 DAG size of output: 1025 [2021-02-19 23:54:03,827 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 1951 DAG size of output: 1511 [2021-02-19 23:54:04,136 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 2221 DAG size of output: 1709 [2021-02-19 23:54:04,488 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 2843 DAG size of output: 2029 [2021-02-19 23:54:04,902 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 3123 DAG size of output: 2317 [2021-02-19 23:54:05,069 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1109 DAG size of output: 1165 [2021-02-19 23:54:05,436 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1042 DAG size of output: 1290 [2021-02-19 23:54:08,924 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1498 DAG size of output: 1079 [2021-02-19 23:54:09,105 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1780 DAG size of output: 1229 [2021-02-19 23:54:09,288 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1812 DAG size of output: 1266 [2021-02-19 23:54:09,534 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1841 DAG size of output: 1293 [2021-02-19 23:54:09,775 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 1577 [2021-02-19 23:54:10,435 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 4045 DAG size of output: 3041 [2021-02-19 23:54:11,178 WARN L202 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 4503 DAG size of output: 3258 [2021-02-19 23:54:12,015 WARN L202 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 5235 DAG size of output: 3764 [2021-02-19 23:54:12,870 WARN L202 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 5494 DAG size of output: 3917 [2021-02-19 23:54:13,808 WARN L202 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 5979 DAG size of output: 4151 [2021-02-19 23:54:14,160 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 2696 DAG size of output: 3549 [2021-02-19 23:54:14,354 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 2526 DAG size of output: 2520 [2021-02-19 23:54:14,512 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 2514 [2021-02-19 23:54:14,666 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 2491 DAG size of output: 2491 [2021-02-19 23:54:14,979 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 2450 DAG size of output: 3011 [2021-02-19 23:54:15,136 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 2239 DAG size of output: 2239 [2021-02-19 23:54:15,295 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1340 DAG size of output: 1950 [2021-02-19 23:54:15,447 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1294 DAG size of output: 1353 [2021-02-19 23:54:15,613 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 1622 [2021-02-19 23:54:17,787 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1826 DAG size of output: 1159 [2021-02-19 23:54:20,002 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1637 DAG size of output: 1014 [2021-02-19 23:54:20,155 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1825 DAG size of output: 1258 [2021-02-19 23:54:20,312 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1882 DAG size of output: 1299 [2021-02-19 23:54:20,619 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 3503 DAG size of output: 2228 [2021-02-19 23:54:21,004 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 4062 DAG size of output: 2844 [2021-02-19 23:54:23,499 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1145 DAG size of output: 793 [2021-02-19 23:54:23,624 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1312 DAG size of output: 975 [2021-02-19 23:54:23,796 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1765 DAG size of output: 1390 [2021-02-19 23:54:23,995 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 2048 DAG size of output: 1773 [2021-02-19 23:54:26,841 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1526 DAG size of output: 1013 [2021-02-19 23:54:26,966 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1564 DAG size of output: 1049 [2021-02-19 23:54:27,108 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1719 DAG size of output: 1217 [2021-02-19 23:54:27,299 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 2185 DAG size of output: 1608 [2021-02-19 23:54:27,510 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 2477 DAG size of output: 1968 [2021-02-19 23:54:27,947 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 4257 DAG size of output: 3316 [2021-02-19 23:54:28,778 WARN L202 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 6624 DAG size of output: 4574 [2021-02-19 23:54:29,739 WARN L202 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 7390 DAG size of output: 5309 [2021-02-19 23:54:29,895 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1287 DAG size of output: 1858 [2021-02-19 23:54:32,119 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1692 DAG size of output: 1241 [2021-02-19 23:54:32,304 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 2080 DAG size of output: 1629 [2021-02-19 23:54:34,124 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1874 DAG size of output: 1285 [2021-02-19 23:54:34,260 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 1934 DAG size of output: 1329 [2021-02-19 23:54:34,575 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 3085 DAG size of output: 2136 [2021-02-19 23:54:36,469 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1819 DAG size of output: 1361 [2021-02-19 23:54:38,481 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1894 DAG size of output: 1537 [2021-02-19 23:54:38,784 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2558 DAG size of output: 1909 [2021-02-19 23:54:39,087 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 2581 DAG size of output: 1951 [2021-02-19 23:54:39,720 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 5310 DAG size of output: 3579 [2021-02-19 23:54:40,458 WARN L202 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 5881 DAG size of output: 4155 [2021-02-19 23:54:42,209 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 12040 DAG size of output: 7625 [2021-02-19 23:54:44,174 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 13365 DAG size of output: 9119 [2021-02-19 23:54:46,727 WARN L202 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 13822 DAG size of output: 9335 [2021-02-19 23:54:48,966 WARN L202 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 13948 DAG size of output: 9411 [2021-02-19 23:54:51,557 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 14434 DAG size of output: 9767 [2021-02-19 23:54:53,943 WARN L202 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 15671 DAG size of output: 10879 [2021-02-19 23:54:57,322 WARN L202 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 20488 DAG size of output: 13814 [2021-02-19 23:55:00,855 WARN L202 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 20503 DAG size of output: 13828 [2021-02-19 23:55:04,426 WARN L202 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 20503 DAG size of output: 13828 [2021-02-19 23:55:08,065 WARN L202 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 20512 DAG size of output: 13837 [2021-02-19 23:55:11,444 WARN L202 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 13839 DAG size of output: 15092 [2021-02-19 23:55:13,634 WARN L202 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 12286 DAG size of output: 12153 [2021-02-19 23:55:16,274 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 12143 DAG size of output: 13252 [2021-02-19 23:55:18,373 WARN L202 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 12125 DAG size of output: 12114 [2021-02-19 23:55:20,181 WARN L202 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 9105 DAG size of output: 10408 [2021-02-19 23:55:22,467 WARN L202 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 8954 DAG size of output: 11863 [2021-02-19 23:55:23,802 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 8719 DAG size of output: 8688 [2021-02-19 23:55:25,881 WARN L202 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 7656 DAG size of output: 9380 [2021-02-19 23:55:26,738 WARN L202 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 5136 DAG size of output: 4648 [2021-02-19 23:55:27,945 WARN L202 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 4346 DAG size of output: 4209 [2021-02-19 23:55:28,548 WARN L202 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 3012 DAG size of output: 2968 [2021-02-19 23:55:28,822 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 1737 [2021-02-19 23:55:28,945 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 973 DAG size of output: 973 [2021-02-19 23:55:31,220 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 975 DAG size of output: 975 [2021-02-19 23:55:31,345 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 955 [2021-02-19 23:55:33,684 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 1881 DAG size of output: 1108 [2021-02-19 23:55:33,993 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 2132 [2021-02-19 23:55:34,107 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1239 DAG size of output: 1239 [2021-02-19 23:55:37,084 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 1741 [2021-02-19 23:55:40,276 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1800 DAG size of output: 989 [2021-02-19 23:55:40,499 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 2266 DAG size of output: 1322 [2021-02-19 23:55:40,932 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 3176 DAG size of output: 1909 [2021-02-19 23:55:41,489 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 4278 DAG size of output: 2963 [2021-02-19 23:55:42,086 WARN L202 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 4564 DAG size of output: 3072 [2021-02-19 23:55:43,198 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 10141 DAG size of output: 5470 [2021-02-19 23:55:43,411 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1507 DAG size of output: 1715 [2021-02-19 23:55:43,649 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 1423 DAG size of output: 2052 [2021-02-19 23:55:43,863 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1408 DAG size of output: 1802 [2021-02-19 23:55:44,295 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1174 DAG size of output: 1426 [2021-02-19 23:55:45,620 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1814 DAG size of output: 1424 [2021-02-19 23:55:46,601 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 2285 DAG size of output: 1767 [2021-02-19 23:55:46,800 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 1151 [2021-02-19 23:55:48,020 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1560 DAG size of output: 1366 [2021-02-19 23:55:48,214 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 2044 DAG size of output: 1742 [2021-02-19 23:55:49,059 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1197 DAG size of output: 963 [2021-02-19 23:55:49,329 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 2680 DAG size of output: 2197 [2021-02-19 23:55:49,812 WARN L202 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 3888 DAG size of output: 2983 [2021-02-19 23:55:50,320 WARN L202 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 4003 DAG size of output: 3095 [2021-02-19 23:55:50,835 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 4039 DAG size of output: 3110 [2021-02-19 23:55:51,078 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 1309 DAG size of output: 1599 [2021-02-19 23:55:51,297 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1213 DAG size of output: 1773 [2021-02-19 23:55:51,732 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 1414 [2021-02-19 23:55:52,908 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1392 [2021-02-19 23:55:53,972 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1338 DAG size of output: 1127 [2021-02-19 23:55:54,201 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 2179 DAG size of output: 1891 [2021-02-19 23:55:54,449 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 2244 DAG size of output: 1965 [2021-02-19 23:55:54,725 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 2263 DAG size of output: 1980 [2021-02-19 23:55:54,994 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 2264 DAG size of output: 1880 [2021-02-19 23:55:55,108 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1300 DAG size of output: 1300 [2021-02-19 23:55:55,417 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1252 DAG size of output: 1816 [2021-02-19 23:55:57,588 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1982 DAG size of output: 1518 [2021-02-19 23:55:57,785 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1983 DAG size of output: 1437 [2021-02-19 23:55:58,002 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 2023 DAG size of output: 1471 [2021-02-19 23:55:58,212 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 1495 [2021-02-19 23:55:58,679 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 3356 DAG size of output: 2581 [2021-02-19 23:55:59,574 WARN L202 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 6328 DAG size of output: 4219 [2021-02-19 23:55:59,806 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1213 DAG size of output: 1529 [2021-02-19 23:56:00,010 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 1133 DAG size of output: 1385 [2021-02-19 23:56:02,954 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1751 DAG size of output: 1466 [2021-02-19 23:56:03,104 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1784 DAG size of output: 1490 [2021-02-19 23:56:03,277 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 1816 DAG size of output: 1518 [2021-02-19 23:56:03,470 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 2259 DAG size of output: 1327 [2021-02-19 23:56:03,716 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1006 DAG size of output: 1218 [2021-02-19 23:56:04,973 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1396 DAG size of output: 1178 [2021-02-19 23:56:06,399 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1961 DAG size of output: 1511 [2021-02-19 23:56:06,609 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 1997 DAG size of output: 1541 [2021-02-19 23:56:07,025 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 3495 DAG size of output: 2358 [2021-02-19 23:56:08,385 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 7405 DAG size of output: 4830 [2021-02-19 23:56:08,509 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 954 [2021-02-19 23:56:11,561 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1877 DAG size of output: 1140 [2021-02-19 23:56:11,671 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 689 DAG size of output: 867 [2021-02-19 23:56:13,409 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1580 DAG size of output: 964 [2021-02-19 23:56:13,525 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1581 DAG size of output: 965 [2021-02-19 23:56:13,698 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 899 [2021-02-19 23:56:15,174 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1239 DAG size of output: 873 [2021-02-19 23:56:15,471 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 2237 DAG size of output: 1374 [2021-02-19 23:56:15,843 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 3696 DAG size of output: 2089 [2021-02-19 23:56:15,956 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 832 [2021-02-19 23:56:19,071 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 2093 DAG size of output: 1262 [2021-02-19 23:56:19,624 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 4528 DAG size of output: 2660 [2021-02-19 23:56:21,236 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 11076 DAG size of output: 6061 [2021-02-19 23:56:23,574 WARN L202 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 20450 DAG size of output: 8258 [2021-02-19 23:56:26,411 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 24565 DAG size of output: 10232 [2021-02-19 23:56:29,538 WARN L202 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 26385 DAG size of output: 11105 [2021-02-19 23:56:30,297 WARN L202 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 3591 DAG size of output: 3763 [2021-02-19 23:56:30,862 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 3522 DAG size of output: 3518 [2021-02-19 23:56:31,626 WARN L202 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 2894 DAG size of output: 2894 [2021-02-19 23:56:32,339 WARN L202 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 2841 DAG size of output: 3376 [2021-02-19 23:56:32,819 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 2811 DAG size of output: 2811 [2021-02-19 23:56:34,249 WARN L202 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 2176 DAG size of output: 2590 [2021-02-19 23:56:34,446 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1519 DAG size of output: 1463 [2021-02-19 23:56:34,630 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1245 DAG size of output: 1245 [2021-02-19 23:56:34,773 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1003 DAG size of output: 1003 [2021-02-19 23:56:35,052 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 839 DAG size of output: 839 [2021-02-19 23:56:37,484 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1042 DAG size of output: 840 [2021-02-19 23:56:38,363 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1346 DAG size of output: 991 [2021-02-19 23:56:38,665 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 2848 DAG size of output: 1713 [2021-02-19 23:56:38,796 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1178 DAG size of output: 1178 [2021-02-19 23:56:38,953 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 1113 [2021-02-19 23:56:40,917 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1206 DAG size of output: 956 [2021-02-19 23:56:41,042 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1313 DAG size of output: 1055 [2021-02-19 23:56:41,179 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1096 [2021-02-19 23:56:41,675 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 4009 DAG size of output: 2635 [2021-02-19 23:56:42,256 WARN L202 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 4821 DAG size of output: 2922 [2021-02-19 23:56:42,837 WARN L202 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 4877 DAG size of output: 2975 [2021-02-19 23:56:43,513 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 5416 DAG size of output: 3501 [2021-02-19 23:56:44,245 WARN L202 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 5685 DAG size of output: 3755 [2021-02-19 23:56:46,198 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 832 [2021-02-19 23:56:47,487 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 680 [2021-02-19 23:56:48,694 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 945 DAG size of output: 812 [2021-02-19 23:56:48,875 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1472 DAG size of output: 1117 [2021-02-19 23:56:50,147 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 781 [2021-02-19 23:56:50,257 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1021 DAG size of output: 943 [2021-02-19 23:56:50,556 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 1937 DAG size of output: 1542 [2021-02-19 23:56:50,961 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 2893 DAG size of output: 2010 [2021-02-19 23:56:54,660 WARN L202 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 33515 DAG size of output: 12904 [2021-02-19 23:56:58,700 WARN L202 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 34798 DAG size of output: 13460 [2021-02-19 23:57:03,139 WARN L202 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 35091 DAG size of output: 13664 [2021-02-19 23:57:07,969 WARN L202 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 38686 DAG size of output: 16158 [2021-02-19 23:57:12,820 WARN L202 SmtUtils]: Spent 4.71 s on a formula simplification. DAG size of input: 38686 DAG size of output: 16158 [2021-02-19 23:57:17,755 WARN L202 SmtUtils]: Spent 4.85 s on a formula simplification. DAG size of input: 38694 DAG size of output: 16166 [2021-02-19 23:57:22,687 WARN L202 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 16168 DAG size of output: 18114 [2021-02-19 23:57:27,080 WARN L202 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 14809 DAG size of output: 17687 [2021-02-19 23:57:31,578 WARN L202 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 14714 DAG size of output: 16389 [2021-02-19 23:57:35,320 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 14705 DAG size of output: 16875 [2021-02-19 23:57:38,358 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 14697 DAG size of output: 15164 [2021-02-19 23:57:40,867 WARN L202 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 14558 DAG size of output: 14551 [2021-02-19 23:57:43,324 WARN L202 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 12084 DAG size of output: 12939 [2021-02-19 23:57:54,165 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1731 DAG size of output: 1702 [2021-02-19 23:57:54,692 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 1630 [2021-02-19 23:58:08,109 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 6153 DAG size of output: 3549 [2021-02-19 23:58:08,571 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 2735 DAG size of output: 2803 [2021-02-19 23:58:08,917 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 2720 DAG size of output: 2712 [2021-02-19 23:58:10,333 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 2188 [2021-02-19 23:58:11,028 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 1892 DAG size of output: 1929 [2021-02-19 23:58:11,588 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 1814 DAG size of output: 1788 [2021-02-19 23:58:15,501 WARN L202 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 6558 DAG size of output: 3797 [2021-02-19 23:58:16,489 WARN L202 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 7323 DAG size of output: 4321 [2021-02-19 23:58:17,638 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 8967 DAG size of output: 4694 [2021-02-19 23:58:19,316 WARN L202 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 15677 DAG size of output: 7230 [2021-02-19 23:58:21,231 WARN L202 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 18252 DAG size of output: 7849 [2021-02-19 23:58:23,543 WARN L202 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 21601 DAG size of output: 9240 [2021-02-19 23:58:25,827 WARN L202 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 21601 DAG size of output: 9240 [2021-02-19 23:58:28,220 WARN L202 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 21603 DAG size of output: 9242 [2021-02-19 23:58:29,570 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 9238 DAG size of output: 8230 [2021-02-19 23:58:31,360 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 8232 DAG size of output: 8846 [2021-02-19 23:58:32,060 WARN L202 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 5917 DAG size of output: 4290 [2021-02-19 23:58:32,565 WARN L202 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 3833 DAG size of output: 3768 [2021-02-19 23:58:33,055 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 3599 DAG size of output: 3583 [2021-02-19 23:58:33,271 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 1697 [2021-02-19 23:58:33,424 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1403 DAG size of output: 1386 [2021-02-19 23:58:33,599 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 1244 DAG size of output: 1220 [2021-02-19 23:58:35,553 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 2326 DAG size of output: 2605 [2021-02-19 23:58:35,832 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 2172 DAG size of output: 2161 [2021-02-19 23:58:36,065 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 2074 DAG size of output: 2069 [2021-02-19 23:58:36,263 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1832 DAG size of output: 1832 [2021-02-19 23:58:36,420 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1540 DAG size of output: 1540 [2021-02-19 23:58:36,568 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1281 [2021-02-19 23:58:38,705 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 2763 DAG size of output: 884 [2021-02-19 23:58:38,996 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 2907 DAG size of output: 971 [2021-02-19 23:58:39,747 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 3191 DAG size of output: 1093 [2021-02-19 23:58:40,175 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 6567 DAG size of output: 2230 [2021-02-19 23:58:40,637 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 6567 DAG size of output: 2230 [2021-02-19 23:58:41,345 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 6574 DAG size of output: 2327 [2021-02-19 23:58:41,530 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1918 DAG size of output: 1022 [2021-02-19 23:58:42,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 23:58:42,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:58:42,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 23:58:42,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-02-19 23:58:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:58:42,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:58:42,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-02-19 23:58:42,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940435956] [2021-02-19 23:58:42,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-19 23:58:42,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:58:42,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-19 23:58:42,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=798, Unknown=0, NotChecked=0, Total=870 [2021-02-19 23:58:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:42,966 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:58:42,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:42,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:43,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:43,275 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:58:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:58:43,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1672721910, now seen corresponding path program 15 times [2021-02-19 23:58:43,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:58:43,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201538225] [2021-02-19 23:58:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:58:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 66 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:58:43,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201538225] [2021-02-19 23:58:43,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313035972] [2021-02-19 23:58:43,400 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:43,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-02-19 23:58:43,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:58:43,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-02-19 23:58:43,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:58:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 78 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:58:43,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:58:43,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-02-19 23:58:43,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900491169] [2021-02-19 23:58:43,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-19 23:58:43,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:58:43,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-19 23:58:43,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-02-19 23:58:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:43,479 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:58:43,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:43,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:43,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37682 [2021-02-19 23:58:43,876 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:58:43,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:58:43,877 INFO L82 PathProgramCache]: Analyzing trace with hash 315499157, now seen corresponding path program 16 times [2021-02-19 23:58:43,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:58:43,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516173447] [2021-02-19 23:58:43,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:58:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:44,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516173447] [2021-02-19 23:58:44,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33431461] [2021-02-19 23:58:44,060 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:44,086 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 23:58:44,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:58:44,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 23:58:44,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:58:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:44,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:58:44,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-02-19 23:58:44,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837851828] [2021-02-19 23:58:44,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-19 23:58:44,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:58:44,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-19 23:58:44,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-02-19 23:58:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:44,282 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:58:44,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 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) [2021-02-19 23:58:44,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:44,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:44,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:44,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:44,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:44,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-19 23:58:45,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37683,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:45,033 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:58:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:58:45,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1291833897, now seen corresponding path program 17 times [2021-02-19 23:58:45,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:58:45,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687220700] [2021-02-19 23:58:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:58:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:45,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687220700] [2021-02-19 23:58:45,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672448095] [2021-02-19 23:58:45,212 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:45,246 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-02-19 23:58:45,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:58:45,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2021-02-19 23:58:45,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:58:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:45,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:58:45,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-02-19 23:58:45,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531862180] [2021-02-19 23:58:45,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-19 23:58:45,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:58:45,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-19 23:58:45,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-02-19 23:58:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:45,462 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:58:45,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-02-19 23:58:45,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-19 23:58:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:58:46,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37684,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:46,210 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:58:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:58:46,210 INFO L82 PathProgramCache]: Analyzing trace with hash 420448981, now seen corresponding path program 18 times [2021-02-19 23:58:46,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:58:46,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275247301] [2021-02-19 23:58:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:58:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:46,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275247301] [2021-02-19 23:58:46,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339307162] [2021-02-19 23:58:46,428 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:46,477 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-02-19 23:58:46,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 23:58:46,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 33 conjunts are in the unsatisfiable core [2021-02-19 23:58:46,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:58:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-19 23:58:46,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 23:58:46,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-02-19 23:58:46,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698680037] [2021-02-19 23:58:46,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-19 23:58:46,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:58:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-19 23:58:46,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2021-02-19 23:58:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:46,717 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:58:46,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.25) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:58:46,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:46,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:46,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:58:46,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:58:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:58:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-19 23:58:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-19 23:58:47,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37685 [2021-02-19 23:58:47,550 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:58:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:58:47,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1961610647, now seen corresponding path program 19 times [2021-02-19 23:58:47,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:58:47,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729693634] [2021-02-19 23:58:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:58:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:58:47,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729693634] [2021-02-19 23:58:47,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570425669] [2021-02-19 23:58:47,690 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 23:58:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:58:47,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 47 conjunts are in the unsatisfiable core [2021-02-19 23:58:47,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 23:58:48,956 WARN L202 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2021-02-19 23:58:48,957 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 23:58:48,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 31 new quantified variables, introduced 120 case distinctions, treesize of input 71 treesize of output 1012 [2021-02-19 23:58:52,690 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 2076 DAG size of output: 1505 [2021-02-19 23:58:55,231 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1599 DAG size of output: 1259 [2021-02-19 23:58:55,428 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 3433 DAG size of output: 1884 [2021-02-19 23:58:58,861 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 2110 DAG size of output: 1535 [2021-02-19 23:59:01,307 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1632 DAG size of output: 1290 [2021-02-19 23:59:01,496 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 3472 DAG size of output: 1922 [2021-02-19 23:59:01,920 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 6589 DAG size of output: 3519 [2021-02-19 23:59:02,337 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 6641 DAG size of output: 3551 [2021-02-19 23:59:05,843 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 2076 DAG size of output: 1504 [2021-02-19 23:59:08,235 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1600 DAG size of output: 1261 [2021-02-19 23:59:08,422 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 3433 DAG size of output: 1872 [2021-02-19 23:59:14,822 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 3450 DAG size of output: 1886 [2021-02-19 23:59:15,250 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 6564 DAG size of output: 3482 [2021-02-19 23:59:15,670 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 6598 DAG size of output: 3518 [2021-02-19 23:59:16,511 WARN L202 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 12880 DAG size of output: 5666 [2021-02-19 23:59:17,407 WARN L202 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 12913 DAG size of output: 5704 [2021-02-19 23:59:18,330 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 12945 DAG size of output: 5737 [2021-02-19 23:59:20,762 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1632 DAG size of output: 1291 [2021-02-19 23:59:24,139 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 2110 DAG size of output: 1535 [2021-02-19 23:59:24,328 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 3472 DAG size of output: 1923 [2021-02-19 23:59:26,694 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1663 DAG size of output: 1321 [2021-02-19 23:59:29,994 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 2142 DAG size of output: 1563 [2021-02-19 23:59:30,183 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 3509 DAG size of output: 1960 [2021-02-19 23:59:30,596 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 6639 DAG size of output: 3572 [2021-02-19 23:59:31,009 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 6691 DAG size of output: 3605 [2021-02-19 23:59:37,337 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 3491 DAG size of output: 1925 [2021-02-19 23:59:40,703 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 2110 DAG size of output: 1534 [2021-02-19 23:59:43,093 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 1294 [2021-02-19 23:59:43,302 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 3472 DAG size of output: 1909 [2021-02-19 23:59:43,695 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 6617 DAG size of output: 3533 [2021-02-19 23:59:44,147 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 6650 DAG size of output: 3568 [2021-02-19 23:59:44,988 WARN L202 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 12956 DAG size of output: 5757 [2021-02-19 23:59:45,878 WARN L202 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 12988 DAG size of output: 5794 [2021-02-19 23:59:46,811 WARN L202 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 13019 DAG size of output: 5826 [2021-02-19 23:59:48,689 WARN L202 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 25506 DAG size of output: 11149 [2021-02-19 23:59:50,634 WARN L202 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 25506 DAG size of output: 11149 [2021-02-19 23:59:52,782 WARN L202 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 25533 DAG size of output: 11176 [2021-02-19 23:59:54,207 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 11164 DAG size of output: 11108 [2021-02-19 23:59:56,408 WARN L202 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 11110 DAG size of output: 11428 [2021-02-19 23:59:57,753 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 4903 DAG size of output: 5823 [2021-02-19 23:59:58,510 WARN L202 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 3056 DAG size of output: 3572 [2021-02-19 23:59:58,746 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 1660 DAG size of output: 1658 [2021-02-19 23:59:58,984 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 977 DAG size of output: 1108 [2021-02-19 23:59:59,127 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 966 [2021-02-20 00:00:00,954 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 880 DAG size of output: 651 [2021-02-20 00:00:01,094 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 998 [2021-02-20 00:00:02,937 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 961 DAG size of output: 745 [2021-02-20 00:00:05,753 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 875 DAG size of output: 744 [2021-02-20 00:00:05,955 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 1061 DAG size of output: 847 [2021-02-20 00:00:06,283 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 1676 DAG size of output: 1309 [2021-02-20 00:00:06,398 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 827 [2021-02-20 00:00:08,690 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 883 [2021-02-20 00:00:09,447 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1233 DAG size of output: 984 [2021-02-20 00:00:09,980 WARN L202 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 2587 DAG size of output: 1982 [2021-02-20 00:00:10,580 WARN L202 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 3027 DAG size of output: 1963 [2021-02-20 00:00:10,708 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 840 [2021-02-20 00:00:10,839 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 783 DAG size of output: 898 [2021-02-20 00:00:12,608 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 908 DAG size of output: 831 [2021-02-20 00:00:12,760 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 833 [2021-02-20 00:00:12,891 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 780 DAG size of output: 991 [2021-02-20 00:00:14,399 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 834 [2021-02-20 00:00:14,737 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 891 [2021-02-20 00:00:14,885 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1048 DAG size of output: 931 [2021-02-20 00:00:15,042 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 934 [2021-02-20 00:00:16,408 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 879 DAG size of output: 758 [2021-02-20 00:00:16,526 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 900 DAG size of output: 776 [2021-02-20 00:00:16,651 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 919 DAG size of output: 793 [2021-02-20 00:00:16,783 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 794 [2021-02-20 00:00:17,089 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 1447 [2021-02-20 00:00:17,513 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 2116 DAG size of output: 1667 [2021-02-20 00:00:20,115 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1028 DAG size of output: 795 [2021-02-20 00:00:20,700 WARN L202 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 2642 DAG size of output: 2001 [2021-02-20 00:00:21,891 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 4243 DAG size of output: 2996 [2021-02-20 00:00:23,243 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 4970 DAG size of output: 3451 [2021-02-20 00:00:24,076 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 2993 DAG size of output: 3502 [2021-02-20 00:00:24,637 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 2992 DAG size of output: 2944 [2021-02-20 00:00:24,799 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1120 DAG size of output: 1116 [2021-02-20 00:00:26,497 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 904 DAG size of output: 728 [2021-02-20 00:00:28,253 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1019 DAG size of output: 821 [2021-02-20 00:00:28,517 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1648 DAG size of output: 1286 [2021-02-20 00:00:28,791 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 1670 DAG size of output: 1177 [2021-02-20 00:00:29,139 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 2147 DAG size of output: 1464 [2021-02-20 00:00:29,675 WARN L202 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 2323 DAG size of output: 2702 [2021-02-20 00:00:29,981 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 2254 DAG size of output: 2230 [2021-02-20 00:00:30,124 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1268 [2021-02-20 00:00:30,350 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 1237 DAG size of output: 1653 [2021-02-20 00:00:31,232 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1138 DAG size of output: 1240 [2021-02-20 00:00:31,806 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1131 DAG size of output: 1128 [2021-02-20 00:00:31,931 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1089 DAG size of output: 770 [2021-02-20 00:00:32,615 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 766 DAG size of output: 933 [2021-02-20 00:00:33,006 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 764 DAG size of output: 1107 [2021-02-20 00:00:33,321 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 753 DAG size of output: 796 [2021-02-20 00:00:33,907 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1416 DAG size of output: 1246 [2021-02-20 00:00:34,150 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 1499 DAG size of output: 1324 [2021-02-20 00:00:34,385 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 1534 DAG size of output: 1359 [2021-02-20 00:00:34,676 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 1658 DAG size of output: 1484 [2021-02-20 00:00:35,060 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 2149 DAG size of output: 1892 [2021-02-20 00:00:35,443 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 2171 DAG size of output: 1867 [2021-02-20 00:00:35,984 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 3165 DAG size of output: 2587 [2021-02-20 00:00:36,321 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 1907 DAG size of output: 2609 [2021-02-20 00:00:36,456 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1349 DAG size of output: 1347 [2021-02-20 00:00:37,258 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1338 DAG size of output: 1217 [2021-02-20 00:00:37,530 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 1822 DAG size of output: 1898 [2021-02-20 00:00:37,683 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1762 DAG size of output: 1762 [2021-02-20 00:00:37,805 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1019 DAG size of output: 1026 [2021-02-20 00:00:39,184 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1766 DAG size of output: 1388 [2021-02-20 00:00:39,392 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 1017 [2021-02-20 00:00:39,949 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 920 [2021-02-20 00:00:40,582 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1216 DAG size of output: 1083 [2021-02-20 00:00:40,705 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1241 DAG size of output: 1092 [2021-02-20 00:00:41,023 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 2296 DAG size of output: 1806 [2021-02-20 00:00:41,460 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 3069 DAG size of output: 2415 [2021-02-20 00:00:42,473 WARN L202 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 4771 DAG size of output: 3521 [2021-02-20 00:00:43,714 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 6072 DAG size of output: 4107 [2021-02-20 00:00:44,283 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 2369 DAG size of output: 2748 [2021-02-20 00:00:44,555 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 2061 [2021-02-20 00:00:44,890 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 1898 DAG size of output: 2607 [2021-02-20 00:00:45,051 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1818 DAG size of output: 1812 [2021-02-20 00:00:45,210 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1045 DAG size of output: 1151 [2021-02-20 00:00:45,830 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1017 DAG size of output: 1024 [2021-02-20 00:00:47,149 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1009 [2021-02-20 00:00:47,401 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 1937 DAG size of output: 1551 [2021-02-20 00:00:47,596 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1349 DAG size of output: 1425 [2021-02-20 00:00:48,136 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 1292 [2021-02-20 00:00:48,843 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1213 DAG size of output: 1124 [2021-02-20 00:00:49,001 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1361 DAG size of output: 1221 [2021-02-20 00:00:49,409 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 2724 DAG size of output: 2174 [2021-02-20 00:00:50,856 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1036 DAG size of output: 889 [2021-02-20 00:00:51,289 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 3233 DAG size of output: 2153 [2021-02-20 00:00:51,590 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 2254 DAG size of output: 2230 [2021-02-20 00:00:51,726 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1268 [2021-02-20 00:00:51,910 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1237 DAG size of output: 1286 [2021-02-20 00:00:52,129 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1235 DAG size of output: 1651 [2021-02-20 00:00:52,331 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 1238 [2021-02-20 00:00:52,456 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1126 [2021-02-20 00:00:52,579 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1087 DAG size of output: 768 [2021-02-20 00:00:53,220 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 764 DAG size of output: 931 [2021-02-20 00:00:53,365 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 1105 [2021-02-20 00:00:54,495 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1410 DAG size of output: 1240 [2021-02-20 00:00:54,707 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1493 DAG size of output: 1318 [2021-02-20 00:00:54,957 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 1528 DAG size of output: 1353 [2021-02-20 00:00:55,651 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 1652 DAG size of output: 1478 [2021-02-20 00:00:56,614 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 2120 DAG size of output: 1866 [2021-02-20 00:00:57,974 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 2436 DAG size of output: 2073 [2021-02-20 00:00:58,448 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 2459 DAG size of output: 2045 [2021-02-20 00:00:59,045 WARN L202 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 3456 DAG size of output: 2768 [2021-02-20 00:01:00,134 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 5311 DAG size of output: 3822 [2021-02-20 00:01:02,502 WARN L202 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 7421 DAG size of output: 5025 [2021-02-20 00:01:05,963 WARN L202 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 10588 DAG size of output: 6682 [2021-02-20 00:01:07,042 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 4309 DAG size of output: 4802 [2021-02-20 00:01:07,680 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 2302 DAG size of output: 2543 [2021-02-20 00:01:08,127 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 2299 DAG size of output: 2438 [2021-02-20 00:01:08,598 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 2185 DAG size of output: 2347 [2021-02-20 00:01:08,908 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 1816 DAG size of output: 2448 [2021-02-20 00:01:09,089 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1768 DAG size of output: 1760 [2021-02-20 00:01:09,316 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 996 DAG size of output: 1086 [2021-02-20 00:01:09,429 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 995 [2021-02-20 00:01:10,774 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 912 DAG size of output: 735 [2021-02-20 00:01:10,901 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 725 [2021-02-20 00:01:11,103 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 1724 DAG size of output: 1228 [2021-02-20 00:01:11,225 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1253 DAG size of output: 1250 [2021-02-20 00:01:12,372 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1338 DAG size of output: 1084 [2021-02-20 00:01:12,716 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 2501 DAG size of output: 1742 [2021-02-20 00:01:13,179 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 1950 DAG size of output: 2570 [2021-02-20 00:01:13,403 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1837 DAG size of output: 1822 [2021-02-20 00:01:13,629 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1066 DAG size of output: 1128 [2021-02-20 00:01:14,600 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1061 DAG size of output: 1059 [2021-02-20 00:01:14,711 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1021 DAG size of output: 1020 [2021-02-20 00:01:14,850 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 987 DAG size of output: 691 [2021-02-20 00:01:15,711 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 649 [2021-02-20 00:01:15,877 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 928 DAG size of output: 727 [2021-02-20 00:01:16,140 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 1707 DAG size of output: 1268 [2021-02-20 00:01:16,380 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 1304 DAG size of output: 1331 [2021-02-20 00:01:17,065 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1257 DAG size of output: 1257 [2021-02-20 00:01:18,011 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1035 [2021-02-20 00:01:18,205 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1345 DAG size of output: 1116 [2021-02-20 00:01:18,657 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 2491 DAG size of output: 1841 [2021-02-20 00:01:19,477 WARN L202 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 3511 DAG size of output: 2505 [2021-02-20 00:01:19,653 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 761 DAG size of output: 1084 [2021-02-20 00:01:21,943 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 895 [2021-02-20 00:01:22,105 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 907 [2021-02-20 00:01:22,272 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1100 DAG size of output: 913 [2021-02-20 00:01:22,484 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1347 DAG size of output: 1083 [2021-02-20 00:01:22,596 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 725 [2021-02-20 00:01:24,232 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1025 DAG size of output: 823 [2021-02-20 00:01:24,563 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 2007 DAG size of output: 1546 [2021-02-20 00:01:25,706 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 4841 DAG size of output: 3342 [2021-02-20 00:01:26,155 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 1997 DAG size of output: 2234 [2021-02-20 00:01:26,372 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1729 DAG size of output: 1809 [2021-02-20 00:01:28,053 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 779 [2021-02-20 00:01:28,347 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 1708 DAG size of output: 2251 [2021-02-20 00:01:28,492 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1667 DAG size of output: 1661 [2021-02-20 00:01:28,697 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 945 DAG size of output: 1011 [2021-02-20 00:01:29,817 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 625 [2021-02-20 00:01:29,978 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1549 DAG size of output: 1123 [2021-02-20 00:01:30,135 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1156 DAG size of output: 1201 [2021-02-20 00:01:30,285 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1122 DAG size of output: 1159 [2021-02-20 00:01:31,099 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1090 DAG size of output: 955 [2021-02-20 00:01:31,675 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1210 DAG size of output: 1044 [2021-02-20 00:01:31,991 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 2205 DAG size of output: 1608 [2021-02-20 00:01:32,396 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 2704 DAG size of output: 1756 [2021-02-20 00:01:32,648 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1956 DAG size of output: 1956 [2021-02-20 00:01:32,779 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1129 [2021-02-20 00:01:32,897 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 1090 [2021-02-20 00:01:33,196 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 696 DAG size of output: 900 [2021-02-20 00:01:33,998 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 645 DAG size of output: 699 [2021-02-20 00:01:35,131 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 820 DAG size of output: 635 [2021-02-20 00:01:35,349 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1198 DAG size of output: 951 [2021-02-20 00:01:36,799 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 1540 DAG size of output: 1299 [2021-02-20 00:01:37,138 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 1566 DAG size of output: 1324 [2021-02-20 00:01:37,518 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 1590 DAG size of output: 1345 [2021-02-20 00:01:37,896 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 1616 DAG size of output: 1332 [2021-02-20 00:01:38,405 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 2462 DAG size of output: 1916 [2021-02-20 00:01:39,336 WARN L202 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 3816 DAG size of output: 2763 [2021-02-20 00:01:41,455 WARN L202 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 6404 DAG size of output: 4389 [2021-02-20 00:01:42,438 WARN L202 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 4247 DAG size of output: 4469 [2021-02-20 00:01:42,939 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 3581 DAG size of output: 3545 [2021-02-20 00:01:43,438 WARN L202 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1951 [2021-02-20 00:01:43,677 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 1947 DAG size of output: 1947 [2021-02-20 00:01:43,994 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 1911 DAG size of output: 1972 [2021-02-20 00:01:44,376 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 1895 DAG size of output: 2513 [2021-02-20 00:01:44,495 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1259 DAG size of output: 942 [2021-02-20 00:01:44,686 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 907 DAG size of output: 1006 [2021-02-20 00:01:45,699 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 937 [2021-02-20 00:01:45,858 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 955 [2021-02-20 00:01:46,003 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1790 DAG size of output: 1184 [2021-02-20 00:01:46,112 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1147 DAG size of output: 1147 [2021-02-20 00:01:46,323 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1109 DAG size of output: 1217 [2021-02-20 00:01:46,457 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 1103 [2021-02-20 00:01:46,847 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1178 DAG size of output: 924 [2021-02-20 00:01:47,201 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 866 [2021-02-20 00:01:47,458 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 1299 DAG size of output: 1015 [2021-02-20 00:01:47,700 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1327 DAG size of output: 1043 [2021-02-20 00:01:47,950 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1361 DAG size of output: 1073 [2021-02-20 00:01:48,370 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 2056 DAG size of output: 1649 [2021-02-20 00:01:50,977 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 735 DAG size of output: 654 [2021-02-20 00:01:51,380 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1032 DAG size of output: 917 [2021-02-20 00:01:51,631 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 1345 DAG size of output: 1183 [2021-02-20 00:01:52,295 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 2799 DAG size of output: 2385 [2021-02-20 00:01:52,999 WARN L202 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 2826 DAG size of output: 2290 [2021-02-20 00:01:53,253 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-02-20 00:01:53,544 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 1909 DAG size of output: 1970 [2021-02-20 00:01:56,131 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1018 DAG size of output: 907 [2021-02-20 00:01:56,349 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1331 DAG size of output: 1173 [2021-02-20 00:01:56,721 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 1893 DAG size of output: 2511 [2021-02-20 00:01:56,884 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1788 DAG size of output: 1182 [2021-02-20 00:01:57,184 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 1215 [2021-02-20 00:01:57,999 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1172 DAG size of output: 918 [2021-02-20 00:01:58,197 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1293 DAG size of output: 1009 [2021-02-20 00:01:58,407 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1323 DAG size of output: 1039 [2021-02-20 00:01:58,633 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 1069 [2021-02-20 00:01:58,743 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1257 DAG size of output: 940 [2021-02-20 00:01:58,932 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 905 DAG size of output: 1004 [2021-02-20 00:01:59,885 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1108 DAG size of output: 927 [2021-02-20 00:02:00,067 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1132 DAG size of output: 947 [2021-02-20 00:02:00,455 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 2048 DAG size of output: 1641 [2021-02-20 00:02:01,095 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 2785 DAG size of output: 2375 [2021-02-20 00:02:01,789 WARN L202 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 2814 DAG size of output: 2282 [2021-02-20 00:02:03,182 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 3259 DAG size of output: 2698 [2021-02-20 00:02:04,829 WARN L202 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 4860 DAG size of output: 3781 [2021-02-20 00:02:05,538 WARN L202 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 3388 DAG size of output: 3712 [2021-02-20 00:02:06,001 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 3375 DAG size of output: 3582 [2021-02-20 00:02:06,572 WARN L202 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 3261 DAG size of output: 4308 [2021-02-20 00:02:06,870 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 3184 DAG size of output: 3174 [2021-02-20 00:02:07,024 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1743 DAG size of output: 1743 [2021-02-20 00:02:07,164 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1712 DAG size of output: 1711 [2021-02-20 00:02:07,693 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1163 DAG size of output: 845 [2021-02-20 00:02:08,193 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 2726 DAG size of output: 1785 [2021-02-20 00:02:08,384 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1961 DAG size of output: 1959 [2021-02-20 00:02:08,563 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 1219 [2021-02-20 00:02:08,791 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 1094 [2021-02-20 00:02:08,910 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 1075 [2021-02-20 00:02:10,385 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1039 DAG size of output: 847 [2021-02-20 00:02:10,625 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 1936 DAG size of output: 1636 [2021-02-20 00:02:11,098 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 3868 DAG size of output: 2619 [2021-02-20 00:02:12,707 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 996 DAG size of output: 786 [2021-02-20 00:02:12,886 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1256 DAG size of output: 991 [2021-02-20 00:02:13,426 WARN L202 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 4571 DAG size of output: 2692 [2021-02-20 00:02:13,733 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 3084 DAG size of output: 3084 [2021-02-20 00:02:13,932 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 1705 DAG size of output: 1783 [2021-02-20 00:02:14,077 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1691 DAG size of output: 1691 [2021-02-20 00:02:14,334 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 1662 DAG size of output: 2174 [2021-02-20 00:02:14,499 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 1183 [2021-02-20 00:02:14,635 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1078 DAG size of output: 1092 [2021-02-20 00:02:15,923 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1007 DAG size of output: 876 [2021-02-20 00:02:16,051 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1621 DAG size of output: 1614 [2021-02-20 00:02:16,223 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1584 DAG size of output: 1155 [2021-02-20 00:02:16,843 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1074 DAG size of output: 778 [2021-02-20 00:02:17,468 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1266 DAG size of output: 943 [2021-02-20 00:02:17,638 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 971 [2021-02-20 00:02:17,958 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 1859 DAG size of output: 1476 [2021-02-20 00:02:18,317 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 1881 DAG size of output: 1378 [2021-02-20 00:02:19,688 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 838 DAG size of output: 786 [2021-02-20 00:02:19,800 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 859 DAG size of output: 735 [2021-02-20 00:02:20,131 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 2240 DAG size of output: 1299 [2021-02-20 00:02:20,614 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 3685 DAG size of output: 2246 [2021-02-20 00:02:21,682 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 5463 DAG size of output: 3240 [2021-02-20 00:02:24,472 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 7976 DAG size of output: 5588 [2021-02-20 00:02:29,162 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 11976 DAG size of output: 7720 [2021-02-20 00:02:37,511 WARN L202 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 21216 DAG size of output: 13157 [2021-02-20 00:02:39,434 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 9988 DAG size of output: 10835 [2021-02-20 00:02:40,580 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 9894 DAG size of output: 9894 [2021-02-20 00:02:41,432 WARN L202 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 5118 DAG size of output: 5536 [2021-02-20 00:02:41,669 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 2255 DAG size of output: 2242 [2021-02-20 00:02:42,043 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 2214 DAG size of output: 2722 [2021-02-20 00:02:42,439 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 2077 DAG size of output: 2224 [2021-02-20 00:02:42,757 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 2076 DAG size of output: 2246 [2021-02-20 00:02:43,938 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 728 DAG size of output: 662 [2021-02-20 00:02:44,242 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 959 [2021-02-20 00:02:45,422 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 1576 DAG size of output: 1391 [2021-02-20 00:02:45,656 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1407 [2021-02-20 00:02:45,983 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 2018 DAG size of output: 2697 [2021-02-20 00:02:46,320 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 1936 DAG size of output: 2182 [2021-02-20 00:02:46,499 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 1921 DAG size of output: 1921 [2021-02-20 00:02:46,698 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1891 DAG size of output: 1891 [2021-02-20 00:02:47,422 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1808 DAG size of output: 1808 [2021-02-20 00:02:47,569 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1778 DAG size of output: 1778 [2021-02-20 00:02:48,328 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1117 [2021-02-20 00:02:48,543 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1660 DAG size of output: 1415 [2021-02-20 00:02:48,666 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1314 DAG size of output: 1313 [2021-02-20 00:02:48,781 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1283 DAG size of output: 1283 [2021-02-20 00:02:49,231 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 721 DAG size of output: 732 [2021-02-20 00:02:49,961 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1087 DAG size of output: 973 [2021-02-20 00:02:50,099 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 990 [2021-02-20 00:02:50,272 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1236 [2021-02-20 00:02:50,454 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1386 DAG size of output: 1252 [2021-02-20 00:02:50,892 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 2580 DAG size of output: 2248 [2021-02-20 00:02:51,420 WARN L202 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 3510 DAG size of output: 2430 [2021-02-20 00:02:51,609 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1923 DAG size of output: 1923 [2021-02-20 00:02:51,944 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 1895 DAG size of output: 2577 [2021-02-20 00:02:52,111 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1299 DAG size of output: 1390 [2021-02-20 00:02:52,223 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1281 [2021-02-20 00:02:53,374 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 963 [2021-02-20 00:02:53,510 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1097 DAG size of output: 982 [2021-02-20 00:02:53,680 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1361 DAG size of output: 1230 [2021-02-20 00:02:54,832 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1696 DAG size of output: 1232 [2021-02-20 00:02:55,049 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1813 DAG size of output: 1936 [2021-02-20 00:02:55,649 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 1783 DAG size of output: 2003 [2021-02-20 00:02:55,899 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 992 DAG size of output: 1005 [2021-02-20 00:02:56,563 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1188 DAG size of output: 1073 [2021-02-20 00:02:56,717 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1780 DAG size of output: 1780 [2021-02-20 00:02:56,918 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 991 DAG size of output: 1004 [2021-02-20 00:02:57,616 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1127 DAG size of output: 1000 [2021-02-20 00:02:57,733 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1148 DAG size of output: 1020 [2021-02-20 00:02:57,878 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1402 DAG size of output: 1255 [2021-02-20 00:02:58,142 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1656 DAG size of output: 1442 [2021-02-20 00:02:58,393 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 1869 DAG size of output: 1293 [2021-02-20 00:02:58,904 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 3077 DAG size of output: 2108 [2021-02-20 00:02:59,406 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 3102 DAG size of output: 2130 [2021-02-20 00:03:00,480 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 4243 DAG size of output: 2927 [2021-02-20 00:03:00,771 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 1483 DAG size of output: 1634 [2021-02-20 00:03:00,977 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 1482 DAG size of output: 1557 [2021-02-20 00:03:02,523 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1076 Received shutdown request... [2021-02-20 00:03:02,661 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1302 DAG size of output: 1096 [2021-02-20 00:03:02,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37686,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:03:02,872 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-20 00:03:02,875 WARN L224 ceAbstractionStarter]: Timeout [2021-02-20 00:03:02,875 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:03:02 BasicIcfg [2021-02-20 00:03:02,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-20 00:03:02,875 INFO L168 Benchmark]: Toolchain (without parser) took 563632.17 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 236.5 MB in the beginning and 3.0 GB in the end (delta: -2.8 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-02-20 00:03:02,875 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:03:02,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.66 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:03:02,875 INFO L168 Benchmark]: Boogie Preprocessor took 16.84 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 932.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:03:02,875 INFO L168 Benchmark]: RCFGBuilder took 379.01 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 233.2 MB in the end (delta: 426.1 kB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. [2021-02-20 00:03:02,875 INFO L168 Benchmark]: TraceAbstraction took 563199.51 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 233.1 MB in the beginning and 3.0 GB in the end (delta: -2.8 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-02-20 00:03:02,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.66 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.84 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 932.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 379.01 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 233.2 MB in the end (delta: 426.1 kB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 563199.51 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 233.1 MB in the beginning and 3.0 GB in the end (delta: -2.8 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 56). Cancelled while PartialOrderCegarLoop was analyzing trace of length 30 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 563.0s, OverallIterations: 21, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 298.8s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 86 NumberOfCheckSat, 692 ConstructedInterpolants, 0 QuantifiedInterpolants, 86794 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1444 ConjunctsInSsa, 359 ConjunctsInUnsatCore, 39 InterpolantComputations, 1 PerfectInterpolantSequences, 344/1824 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown