/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 10:47:49,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 10:47:49,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 10:47:49,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 10:47:49,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 10:47:49,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 10:47:49,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 10:47:49,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-04-15 10:47:49,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 10:47:49,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 10:47:49,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 10:47:49,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 10:47:49,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 10:47:49,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 10:47:49,362 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 10:47:49,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 10:47:49,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 10:47:49,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 10:47:49,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 10:47:49,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 10:47:49,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 10:47:49,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 10:47:49,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 10:47:49,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 10:47:49,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 10:47:49,365 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 10:47:49,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-04-15 10:47:49,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 10:47:49,366 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-04-15 10:47:49,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 10:47:49,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 10:47:49,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 10:47:49,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 10:47:49,747 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-15 10:47:49,749 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-15 10:47:49,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-04-15 10:47:49,750 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-04-15 10:47:50,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 10:47:50,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-15 10:47:50,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 10:47:50,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 10:47:50,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 10:47:50,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 10:47:50,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 10:47:50,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 10:47:50,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 10:47:50,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/1) ... [2021-04-15 10:47:50,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 10:47:50,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 10:47:50,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 10:47:50,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 10:47:50,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (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 [2021-04-15 10:47:50,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-15 10:47:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-15 10:47:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-15 10:47:50,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-15 10:47:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-15 10:47:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-15 10:47:50,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-15 10:47:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 10:47:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 10:47:50,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-15 10:47:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-15 10:47:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-15 10:47:50,172 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 10:47:50,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 10:47:50,444 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-15 10:47:50,445 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 10:47:50 BoogieIcfgContainer [2021-04-15 10:47:50,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 10:47:50,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 10:47:50,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 10:47:50,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 10:47:50,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 10:47:50" (1/2) ... [2021-04-15 10:47:50,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8156a4 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 10:47:50, skipping insertion in model container [2021-04-15 10:47:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 10:47:50" (2/2) ... [2021-04-15 10:47:50,452 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-04-15 10:47:50,462 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 10:47:50,463 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 10:47:50,466 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 10:47:50,467 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 10:47:50,544 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-04-15 10:47:50,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-04-15 10:47:50,687 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 10:47:50,688 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 10:47:50,688 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 10:47:50,688 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 10:47:50,690 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 10:47:50,690 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 10:47:50,690 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 10:47:50,690 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 10:47:50,804 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-04-15 10:47:50,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:50,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186102039] [2021-04-15 10:47:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:50,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186102039] [2021-04-15 10:47:50,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 10:47:50,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 10:47:50,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964099098] [2021-04-15 10:47:50,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 10:47:50,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:50,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 10:47:50,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 10:47:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:50,977 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:50,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:50,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:51,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 10:47:51,008 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:51,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-04-15 10:47:51,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:51,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826343898] [2021-04-15 10:47:51,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 10:47:51,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826343898] [2021-04-15 10:47:51,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 10:47:51,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-15 10:47:51,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959233537] [2021-04-15 10:47:51,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 10:47:51,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:51,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 10:47:51,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 10:47:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:51,061 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:51,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:51,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:51,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:51,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 10:47:51,105 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-04-15 10:47:51,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:51,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440241919] [2021-04-15 10:47:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:51,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:51,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440241919] [2021-04-15 10:47:51,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299768859] [2021-04-15 10:47:51,460 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 [2021-04-15 10:47:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:51,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-04-15 10:47:51,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:51,869 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-04-15 10:47:51,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2021-04-15 10:47:51,879 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:47:51,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:47:51,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:47:51,891 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:3 [2021-04-15 10:47:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:51,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:51,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-04-15 10:47:51,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555110453] [2021-04-15 10:47:51,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-15 10:47:51,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:51,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-15 10:47:51,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-04-15 10:47:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:51,923 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:51,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:51,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:51,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:51,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:52,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:52,381 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:52,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:52,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-04-15 10:47:52,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:52,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921572922] [2021-04-15 10:47:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:52,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921572922] [2021-04-15 10:47:52,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344213320] [2021-04-15 10:47:52,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:52,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 10:47:52,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:47:52,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 10:47:52,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:52,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:52,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-04-15 10:47:52,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049521604] [2021-04-15 10:47:52,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 10:47:52,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:52,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 10:47:52,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-04-15 10:47:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:52,666 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:52,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:52,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:52,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:52,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:52,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:53,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:53,079 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:53,080 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-04-15 10:47:53,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:53,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122101901] [2021-04-15 10:47:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 10:47:53,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122101901] [2021-04-15 10:47:53,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976099217] [2021-04-15 10:47:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:53,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 10:47:53,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 10:47:53,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:53,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-04-15 10:47:53,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407065039] [2021-04-15 10:47:53,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-15 10:47:53,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:53,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-15 10:47:53,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-04-15 10:47:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:53,283 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:53,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:53,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:53,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:53,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:53,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:53,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:53,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:53,597 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:53,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:53,598 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-04-15 10:47:53,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:53,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226623947] [2021-04-15 10:47:53,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:54,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226623947] [2021-04-15 10:47:54,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413704372] [2021-04-15 10:47:54,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:54,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 10:47:54,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:47:54,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 35 conjunts are in the unsatisfiable core [2021-04-15 10:47:54,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:54,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:54,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:47:54,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-04-15 10:47:54,431 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 10:47:54,435 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:47:54,437 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:47:54,437 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:3 [2021-04-15 10:47:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:54,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:54,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2021-04-15 10:47:54,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991452310] [2021-04-15 10:47:54,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 10:47:54,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:54,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 10:47:54,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-04-15 10:47:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:54,465 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:54,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:54,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:54,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:54,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:54,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:54,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:54,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:55,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-04-15 10:47:55,150 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:55,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-04-15 10:47:55,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:55,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863425316] [2021-04-15 10:47:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:55,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863425316] [2021-04-15 10:47:55,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879166019] [2021-04-15 10:47:55,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:55,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-04-15 10:47:55,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:47:55,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 10:47:55,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:55,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:55,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-04-15 10:47:55,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8451846] [2021-04-15 10:47:55,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 10:47:55,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:55,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 10:47:55,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-04-15 10:47:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:55,559 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:55,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:55,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:55,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:55,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:55,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:55,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:55,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:55,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:47:56,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:56,213 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:56,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:56,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-04-15 10:47:56,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:56,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903245207] [2021-04-15 10:47:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 10:47:56,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903245207] [2021-04-15 10:47:56,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237230934] [2021-04-15 10:47:56,325 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:56,361 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 10:47:56,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:47:56,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 10:47:56,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 10:47:56,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:56,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-04-15 10:47:56,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113895647] [2021-04-15 10:47:56,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 10:47:56,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:56,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 10:47:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-04-15 10:47:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:56,519 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:56,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:56,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:47:56,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:47:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:47:56,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:56,887 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:47:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:47:56,888 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-04-15 10:47:56,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:47:56,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430480527] [2021-04-15 10:47:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:47:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:47:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:57,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430480527] [2021-04-15 10:47:57,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376009183] [2021-04-15 10:47:57,532 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:47:57,578 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 10:47:57,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:47:57,579 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-04-15 10:47:57,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:47:58,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:47:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:58,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:58,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:58,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:47:58,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-04-15 10:47:58,412 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 10:47:58,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:47:58,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:47:58,421 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:3 [2021-04-15 10:47:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:47:58,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:47:58,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-04-15 10:47:58,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218939595] [2021-04-15 10:47:58,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 10:47:58,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:47:58,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 10:47:58,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2021-04-15 10:47:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:58,458 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:47:58,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.193548387096774) internal successors, (68), 31 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:47:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:47:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:47:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:00,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-04-15 10:48:00,033 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:00,033 INFO L82 PathProgramCache]: Analyzing trace with hash 440189797, now seen corresponding path program 6 times [2021-04-15 10:48:00,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:00,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083894478] [2021-04-15 10:48:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:00,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083894478] [2021-04-15 10:48:00,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435346624] [2021-04-15 10:48:00,830 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:00,869 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 10:48:00,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:00,870 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 58 conjunts are in the unsatisfiable core [2021-04-15 10:48:00,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:01,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:01,931 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:48:01,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 43 treesize of output 107 [2021-04-15 10:48:02,149 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-04-15 10:48:02,365 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 23 [2021-04-15 10:48:02,367 INFO L628 ElimStorePlain]: treesize reduction 1744, result has 1.7 percent of original size [2021-04-15 10:48:02,383 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-04-15 10:48:02,383 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:19 [2021-04-15 10:48:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:02,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:02,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 37 [2021-04-15 10:48:02,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398087204] [2021-04-15 10:48:02,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-04-15 10:48:02,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:02,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-04-15 10:48:02,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 10:48:02,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:02,465 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:02,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.027027027027027) internal successors, (75), 37 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:02,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:04,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:04,001 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:04,002 INFO L82 PathProgramCache]: Analyzing trace with hash 932932035, now seen corresponding path program 7 times [2021-04-15 10:48:04,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:04,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639119296] [2021-04-15 10:48:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 25 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:04,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639119296] [2021-04-15 10:48:04,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522514911] [2021-04-15 10:48:04,190 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 10:48:04,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:04,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:04,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 31 [2021-04-15 10:48:04,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994609152] [2021-04-15 10:48:04,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 10:48:04,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:04,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 10:48:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2021-04-15 10:48:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:04,582 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:04,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:04,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:05,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:05,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:05,909 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:05,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:05,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1748614505, now seen corresponding path program 8 times [2021-04-15 10:48:05,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:05,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589228168] [2021-04-15 10:48:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:06,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589228168] [2021-04-15 10:48:06,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082071024] [2021-04-15 10:48:06,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:06,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 10:48:06,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:06,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 10:48:06,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-15 10:48:06,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:06,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 36 [2021-04-15 10:48:06,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679877236] [2021-04-15 10:48:06,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-04-15 10:48:06,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:06,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-04-15 10:48:06,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 10:48:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:06,541 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:06,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.4722222222222223) internal successors, (89), 36 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:06,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:06,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:06,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:06,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:07,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-04-15 10:48:07,287 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:07,287 INFO L82 PathProgramCache]: Analyzing trace with hash 414393799, now seen corresponding path program 9 times [2021-04-15 10:48:07,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:07,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260880687] [2021-04-15 10:48:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:07,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260880687] [2021-04-15 10:48:07,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914625571] [2021-04-15 10:48:07,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:07,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-04-15 10:48:07,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:07,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2021-04-15 10:48:07,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:07,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:07,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 38 [2021-04-15 10:48:07,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630535785] [2021-04-15 10:48:07,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-04-15 10:48:07,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:07,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-04-15 10:48:07,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1133, Unknown=0, NotChecked=0, Total=1406 [2021-04-15 10:48:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:07,987 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:07,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.289473684210526) internal successors, (87), 38 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:07,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:08,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-04-15 10:48:08,437 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:08,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:08,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1871450459, now seen corresponding path program 10 times [2021-04-15 10:48:08,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:08,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002633158] [2021-04-15 10:48:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:09,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002633158] [2021-04-15 10:48:09,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417012709] [2021-04-15 10:48:09,348 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:09,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 10:48:09,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:09,394 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 80 conjunts are in the unsatisfiable core [2021-04-15 10:48:09,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:10,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:10,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:10,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:10,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:10,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 37 [2021-04-15 10:48:10,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 10:48:10,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:48:10,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:48:10,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:115, output treesize:7 [2021-04-15 10:48:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:10,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:10,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 37 [2021-04-15 10:48:10,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927447954] [2021-04-15 10:48:10,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-04-15 10:48:10,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:10,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-04-15 10:48:10,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1234, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 10:48:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:10,760 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:10,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.2432432432432434) internal successors, (83), 37 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:10,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:10,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:11,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-04-15 10:48:11,826 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash 455473155, now seen corresponding path program 11 times [2021-04-15 10:48:11,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:11,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036895288] [2021-04-15 10:48:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 64 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:12,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036895288] [2021-04-15 10:48:12,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479015274] [2021-04-15 10:48:12,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:12,103 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-04-15 10:48:12,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:12,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjunts are in the unsatisfiable core [2021-04-15 10:48:12,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:12,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:12,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 43 [2021-04-15 10:48:12,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213545991] [2021-04-15 10:48:12,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-04-15 10:48:12,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:12,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-04-15 10:48:12,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2021-04-15 10:48:12,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:12,676 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:12,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:12,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:12,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:14,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:14,896 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:14,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:14,897 INFO L82 PathProgramCache]: Analyzing trace with hash -357524567, now seen corresponding path program 12 times [2021-04-15 10:48:14,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:14,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507456020] [2021-04-15 10:48:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 85 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:15,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507456020] [2021-04-15 10:48:15,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308404808] [2021-04-15 10:48:15,160 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:15,199 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-04-15 10:48:15,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:15,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 25 conjunts are in the unsatisfiable core [2021-04-15 10:48:15,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 85 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:15,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:15,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 48 [2021-04-15 10:48:15,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243071852] [2021-04-15 10:48:15,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-04-15 10:48:15,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:15,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-04-15 10:48:15,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=1827, Unknown=0, NotChecked=0, Total=2256 [2021-04-15 10:48:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:15,882 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:15,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.2291666666666665) internal successors, (107), 48 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:15,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:15,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:15,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:16,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:16,467 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:16,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:16,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2087347975, now seen corresponding path program 13 times [2021-04-15 10:48:16,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:16,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845785199] [2021-04-15 10:48:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 85 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:16,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845785199] [2021-04-15 10:48:16,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646152293] [2021-04-15 10:48:16,765 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:16,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 26 conjunts are in the unsatisfiable core [2021-04-15 10:48:16,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 85 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:17,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:17,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 50 [2021-04-15 10:48:17,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943242678] [2021-04-15 10:48:17,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-04-15 10:48:17,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:17,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-04-15 10:48:17,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 10:48:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:17,567 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:17,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:18,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:18,217 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:18,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2032217371, now seen corresponding path program 14 times [2021-04-15 10:48:18,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:18,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706607409] [2021-04-15 10:48:18,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:19,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706607409] [2021-04-15 10:48:19,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538269705] [2021-04-15 10:48:19,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:19,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 10:48:19,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:19,483 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 104 conjunts are in the unsatisfiable core [2021-04-15 10:48:19,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:21,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-04-15 10:48:21,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 66 disjoint index pairs (out of 105 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 46 [2021-04-15 10:48:21,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 10:48:21,171 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:48:21,173 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 10:48:21,173 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:142, output treesize:7 [2021-04-15 10:48:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:21,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:21,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 46 [2021-04-15 10:48:21,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325856896] [2021-04-15 10:48:21,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-04-15 10:48:21,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:21,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-04-15 10:48:21,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1948, Unknown=0, NotChecked=0, Total=2070 [2021-04-15 10:48:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:21,217 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:21,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.1956521739130435) internal successors, (101), 46 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:21,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:21,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:22,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:22,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-04-15 10:48:22,723 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:22,723 INFO L82 PathProgramCache]: Analyzing trace with hash -974667965, now seen corresponding path program 15 times [2021-04-15 10:48:22,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:22,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969826690] [2021-04-15 10:48:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 121 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:23,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969826690] [2021-04-15 10:48:23,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923365931] [2021-04-15 10:48:23,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:23,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-04-15 10:48:23,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:23,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 29 conjunts are in the unsatisfiable core [2021-04-15 10:48:23,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 144 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:24,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:24,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 55 [2021-04-15 10:48:24,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696535151] [2021-04-15 10:48:24,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-04-15 10:48:24,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:24,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-04-15 10:48:24,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 10:48:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:24,028 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:24,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.2) internal successors, (121), 55 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:24,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:24,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:24,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:24,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:24,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-04-15 10:48:27,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-04-15 10:48:27,365 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash -229641495, now seen corresponding path program 16 times [2021-04-15 10:48:27,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:27,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546517159] [2021-04-15 10:48:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 148 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:27,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546517159] [2021-04-15 10:48:27,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241364712] [2021-04-15 10:48:27,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:27,914 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 10:48:27,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:27,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 29 conjunts are in the unsatisfiable core [2021-04-15 10:48:27,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 169 proven. 169 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-15 10:48:28,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:28,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 30] total 60 [2021-04-15 10:48:28,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831412283] [2021-04-15 10:48:28,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-04-15 10:48:28,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:28,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-04-15 10:48:28,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=3069, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 10:48:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:28,870 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:28,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.283333333333333) internal successors, (137), 60 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:28,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:28,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:28,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-04-15 10:48:28,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-04-15 10:48:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 10:48:30,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-04-15 10:48:30,105 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:30,105 INFO L82 PathProgramCache]: Analyzing trace with hash 818782535, now seen corresponding path program 17 times [2021-04-15 10:48:30,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:30,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570911439] [2021-04-15 10:48:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 148 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:30,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570911439] [2021-04-15 10:48:30,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320262302] [2021-04-15 10:48:30,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:30,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-04-15 10:48:30,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:30,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 32 conjunts are in the unsatisfiable core [2021-04-15 10:48:30,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 148 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:31,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 10:48:31,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 62 [2021-04-15 10:48:31,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596109125] [2021-04-15 10:48:31,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-04-15 10:48:31,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 10:48:31,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-04-15 10:48:31,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=717, Invalid=3065, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 10:48:31,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:31,732 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 10:48:31,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.1774193548387095) internal successors, (135), 62 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-04-15 10:48:31,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 10:48:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 10:48:32,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-04-15 10:48:32,563 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 10:48:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 10:48:32,564 INFO L82 PathProgramCache]: Analyzing trace with hash -963039195, now seen corresponding path program 18 times [2021-04-15 10:48:32,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 10:48:32,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350322781] [2021-04-15 10:48:32,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 10:48:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 10:48:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 398 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 10:48:34,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350322781] [2021-04-15 10:48:34,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958553170] [2021-04-15 10:48:34,376 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 10:48:34,423 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-04-15 10:48:34,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 10:48:34,425 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 133 conjunts are in the unsatisfiable core [2021-04-15 10:48:34,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 10:48:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-04-15 10:48:39,104 INFO L244 Elim1Store]: Index analysis took 201 ms [2021-04-15 10:48:40,737 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 503 [2021-04-15 10:48:40,737 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 10:48:40,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 215 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 110 case distinctions, treesize of input 173 treesize of output 1135 [2021-04-15 10:48:41,195 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1634 DAG size of output: 1623 [2021-04-15 10:48:41,466 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1646 DAG size of output: 1635 [2021-04-15 10:48:42,771 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 6511 DAG size of output: 4447 [2021-04-15 10:48:43,575 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 6531 DAG size of output: 4467 [2021-04-15 10:48:48,999 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 27427 DAG size of output: 15797 [2021-04-15 10:48:52,580 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 27453 DAG size of output: 15823 [2021-04-15 10:49:20,993 WARN L205 SmtUtils]: Spent 16.03 s on a formula simplification. DAG size of input: 122060 DAG size of output: 63725 [2021-04-15 10:49:44,243 WARN L205 SmtUtils]: Spent 15.11 s on a formula simplification. DAG size of input: 122099 DAG size of output: 63764 [2021-04-15 10:50:02,897 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-15 10:50:04,090 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-15 10:50:10,564 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-15 10:50:21,158 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-15 10:50:28,539 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-04-15 10:50:37,682 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-15 10:50:54,409 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-04-15 10:51:02,166 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-15 10:51:06,609 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-15 10:53:46,206 WARN L205 SmtUtils]: Spent 2.52 m on a formula simplification. DAG size of input: 768585 DAG size of output: 561732