/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:19:23,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:19:23,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:19:23,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 21:19:23,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 21:19:23,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 21:19:23,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 21:19:23,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 21:19:23,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 21:19:23,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 21:19:23,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 21:19:23,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 21:19:23,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 21:19:23,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 21:19:23,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 21:19:23,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 21:19:23,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 21:19:23,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-02-19 21:19:23,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:19:23,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:19:23,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:19:23,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:19:23,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:19:23,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:19:23,366 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:19:23,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:19:23,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:19:23,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:19:23,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:19:23,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:19:23,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:19:23,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:19:23,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:19:23,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:19:23,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:19:23,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:19:23,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:19:23,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:19:23,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:19:23,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:19:23,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:19:23,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:19:23,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:19:23,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:19:23,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:19:23,371 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:19:23,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:19:23,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:19:23,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:19:23,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:19:23,697 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:19:23,698 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:19:23,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2021-02-19 21:19:23,699 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2021-02-19 21:19:23,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:19:23,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:19:23,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:19:23,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:19:23,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:19:23,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:19:23,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:19:23,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:19:23,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:19:23,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... [2021-02-19 21:19:23,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:19:23,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:19:23,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:19:23,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:19:23,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:19:23,887 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:19:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:19:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:19:23,887 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:19:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:19:23,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:19:23,888 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:19:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:19:23,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:19:23,889 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:19:24,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:19:24,024 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 21:19:24,025 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:19:24 BoogieIcfgContainer [2021-02-19 21:19:24,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:19:24,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:19:24,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:19:24,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:19:24,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:19:23" (1/2) ... [2021-02-19 21:19:24,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c5a679 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:19:24, skipping insertion in model container [2021-02-19 21:19:24,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:19:24" (2/2) ... [2021-02-19 21:19:24,030 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2021-02-19 21:19:24,035 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:19:24,035 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:19:24,037 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:19:24,054 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:19:24,110 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 21:19:24,136 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 21:19:24,196 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:19:24,196 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:19:24,196 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 21:19:24,196 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:19:24,197 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:19:24,197 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:19:24,197 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:19:24,197 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 21:19:24,251 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:24,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1138177914, now seen corresponding path program 1 times [2021-02-19 21:19:24,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514030576] [2021-02-19 21:19:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:24,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514030576] [2021-02-19 21:19:24,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:19:24,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 21:19:24,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507934490] [2021-02-19 21:19:24,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 21:19:24,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:24,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 21:19:24,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 21:19:24,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:24,577 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:24,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:24,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:24,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 21:19:24,821 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:24,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:24,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1870168559, now seen corresponding path program 1 times [2021-02-19 21:19:24,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:24,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123258262] [2021-02-19 21:19:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 21:19:24,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123258262] [2021-02-19 21:19:24,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463505854] [2021-02-19 21:19:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:24,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 21:19:24,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:25,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:19:25,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-02-19 21:19:25,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510574808] [2021-02-19 21:19:25,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 21:19:25,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:25,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 21:19:25,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-19 21:19:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:25,009 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:25,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:25,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:25,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:25,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:25,355 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:25,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:25,356 INFO L82 PathProgramCache]: Analyzing trace with hash -730706842, now seen corresponding path program 1 times [2021-02-19 21:19:25,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:25,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990353593] [2021-02-19 21:19:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:25,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990353593] [2021-02-19 21:19:25,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698659081] [2021-02-19 21:19:25,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:25,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 21:19:25,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:26,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-02-19 21:19:26,241 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:19:26,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:19:26,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:19:26,247 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:10 [2021-02-19 21:19:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:26,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:19:26,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2021-02-19 21:19:26,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417164951] [2021-02-19 21:19:26,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-19 21:19:26,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:26,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-19 21:19:26,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-02-19 21:19:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:26,295 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:26,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:26,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:26,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:26,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:27,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:27,185 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:27,186 INFO L82 PathProgramCache]: Analyzing trace with hash 540446895, now seen corresponding path program 1 times [2021-02-19 21:19:27,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:27,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174368214] [2021-02-19 21:19:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:27,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174368214] [2021-02-19 21:19:27,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128304180] [2021-02-19 21:19:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:27,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-02-19 21:19:27,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:27,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:19:27,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-02-19 21:19:27,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018718365] [2021-02-19 21:19:27,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 21:19:27,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:27,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 21:19:27,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-02-19 21:19:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:27,403 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:27,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:27,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:27,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:27,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:27,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:19:27,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:27,774 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:27,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1407776430, now seen corresponding path program 2 times [2021-02-19 21:19:27,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:27,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553442136] [2021-02-19 21:19:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:28,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553442136] [2021-02-19 21:19:28,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898221139] [2021-02-19 21:19:28,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:28,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:19:28,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:19:28,751 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 45 conjunts are in the unsatisfiable core [2021-02-19 21:19:28,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:29,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2021-02-19 21:19:29,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:19:29,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:19:29,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:19:29,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:10 [2021-02-19 21:19:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:29,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:19:29,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 35 [2021-02-19 21:19:29,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837645897] [2021-02-19 21:19:29,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-19 21:19:29,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:29,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-19 21:19:29,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-02-19 21:19:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:29,458 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:29,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:29,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:29,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:29,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:29,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:19:29,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:32,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:19:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-19 21:19:32,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:32,593 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:32,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:32,594 INFO L82 PathProgramCache]: Analyzing trace with hash 138424559, now seen corresponding path program 2 times [2021-02-19 21:19:32,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:32,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701203249] [2021-02-19 21:19:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 110 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:32,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701203249] [2021-02-19 21:19:32,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722271308] [2021-02-19 21:19:32,763 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:32,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:19:32,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:19:32,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-19 21:19:32,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 139 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:32,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:19:32,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-02-19 21:19:32,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430480514] [2021-02-19 21:19:32,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 21:19:32,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:19:32,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 21:19:32,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-02-19 21:19:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:32,999 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:19:32,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-02-19 21:19:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:19:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:19:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:19:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:19:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:19:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-19 21:19:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 21:19:33,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:33,550 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:19:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:19:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash 807350294, now seen corresponding path program 3 times [2021-02-19 21:19:33,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:19:33,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526135270] [2021-02-19 21:19:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:19:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:19:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 91 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:19:36,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526135270] [2021-02-19 21:19:36,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713037391] [2021-02-19 21:19:36,132 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:19:36,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-02-19 21:19:36,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:19:36,180 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 95 conjunts are in the unsatisfiable core [2021-02-19 21:19:36,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:19:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:19:40,750 INFO L244 Elim1Store]: Index analysis took 133 ms [2021-02-19 21:19:41,408 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2021-02-19 21:19:41,408 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:19:41,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 66 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 70 case distinctions, treesize of input 136 treesize of output 768 [2021-02-19 21:19:42,577 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 5520 DAG size of output: 3452 [2021-02-19 21:19:43,400 WARN L202 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 5551 DAG size of output: 3483 [2021-02-19 21:19:43,724 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 3252 DAG size of output: 3228 [2021-02-19 21:19:44,130 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 2957 DAG size of output: 3105 [2021-02-19 21:19:44,548 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 2953 DAG size of output: 3053 [2021-02-19 21:19:45,061 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 2949 DAG size of output: 3117 [2021-02-19 21:19:45,274 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 2943 DAG size of output: 2943 [2021-02-19 21:19:45,480 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 2750 DAG size of output: 2750 [2021-02-19 21:19:46,467 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 2451 DAG size of output: 2613 [2021-02-19 21:19:46,671 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 2445 DAG size of output: 2445 [2021-02-19 21:19:47,561 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1933 DAG size of output: 1933 [2021-02-19 21:19:47,703 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1732 [2021-02-19 21:19:49,857 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1942 DAG size of output: 1844 [2021-02-19 21:19:50,473 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 2338 DAG size of output: 2218 [2021-02-19 21:19:50,944 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 2624 DAG size of output: 2475 [2021-02-19 21:19:51,178 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 3108 DAG size of output: 2884 [2021-02-19 21:19:52,006 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 3619 DAG size of output: 3368 [2021-02-19 21:19:52,373 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 4120 DAG size of output: 3866 [2021-02-19 21:19:52,800 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 4606 DAG size of output: 4329 [2021-02-19 21:19:54,215 WARN L202 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 5279 DAG size of output: 4859 [2021-02-19 21:19:54,930 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 5844 DAG size of output: 5424 [2021-02-19 21:19:55,846 WARN L202 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 6424 DAG size of output: 6001 [2021-02-19 21:19:56,988 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 6849 DAG size of output: 6424 [2021-02-19 21:19:58,001 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1060 DAG size of output: 1003 [2021-02-19 21:19:59,291 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-02-19 21:20:00,585 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-02-19 21:20:02,067 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 7369 DAG size of output: 6910 [2021-02-19 21:20:04,762 WARN L202 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 6706 DAG size of output: 7742 [2021-02-19 21:20:07,389 WARN L202 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 6694 DAG size of output: 7515 [2021-02-19 21:20:08,653 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 6683 DAG size of output: 6661 [2021-02-19 21:20:10,372 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 2636 DAG size of output: 2289 [2021-02-19 21:20:13,064 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 2669 DAG size of output: 2315 [2021-02-19 21:20:14,795 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 3130 DAG size of output: 2853 [2021-02-19 21:20:15,062 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 3482 DAG size of output: 3165 [2021-02-19 21:20:15,223 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 3870 DAG size of output: 3529 [2021-02-19 21:20:15,676 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 4395 DAG size of output: 4002 [2021-02-19 21:20:16,157 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 6817 DAG size of output: 6294 [2021-02-19 21:20:17,088 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 2663 DAG size of output: 2280 [2021-02-19 21:20:17,743 WARN L202 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 7973 DAG size of output: 7331 [2021-02-19 21:20:18,838 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 6228 DAG size of output: 6206 [2021-02-19 21:20:19,738 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 5811 DAG size of output: 5789 [2021-02-19 21:20:19,921 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2734 [2021-02-19 21:20:21,153 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 3222 DAG size of output: 3195 [2021-02-19 21:20:21,449 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 3681 DAG size of output: 3648 [2021-02-19 21:20:21,613 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 3784 DAG size of output: 3751 [2021-02-19 21:20:21,799 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 4094 DAG size of output: 4061 [2021-02-19 21:20:21,950 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 2552 DAG size of output: 2552 [2021-02-19 21:20:23,041 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 2268 DAG size of output: 2268 [2021-02-19 21:20:27,734 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 3749 DAG size of output: 3482 [2021-02-19 21:20:27,920 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 5002 DAG size of output: 4596 [2021-02-19 21:20:28,184 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 6139 DAG size of output: 5669 [2021-02-19 21:20:28,489 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 6950 DAG size of output: 6407 [2021-02-19 21:20:28,854 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 7808 DAG size of output: 7168 [2021-02-19 21:20:29,992 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 2849 DAG size of output: 2798 [2021-02-19 21:20:30,130 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 3163 DAG size of output: 3111 [2021-02-19 21:20:30,636 WARN L202 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 10131 DAG size of output: 9327 [2021-02-19 21:20:31,284 WARN L202 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 11625 DAG size of output: 10669 [2021-02-19 21:20:32,160 WARN L202 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 14224 DAG size of output: 13220 [2021-02-19 21:20:32,381 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 1251 [2021-02-19 21:20:33,712 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 4179 DAG size of output: 4235 [2021-02-19 21:20:33,991 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 4623 DAG size of output: 4689 [2021-02-19 21:20:34,118 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 1140 [2021-02-19 21:20:34,240 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 985 [2021-02-19 21:20:36,357 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 4020 DAG size of output: 3883 [2021-02-19 21:20:37,102 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 5076 DAG size of output: 4944 [2021-02-19 21:20:37,330 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 5615 DAG size of output: 5477 [2021-02-19 21:20:37,632 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 6152 DAG size of output: 6008 [2021-02-19 21:20:37,959 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 6695 DAG size of output: 6549 [2021-02-19 21:20:38,354 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 7165 DAG size of output: 7015 [2021-02-19 21:20:38,791 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 7780 DAG size of output: 7628 [2021-02-19 21:20:39,318 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 8380 DAG size of output: 8221 [2021-02-19 21:20:39,899 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 9009 DAG size of output: 8845 [2021-02-19 21:20:40,728 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 11234 DAG size of output: 11072 [2021-02-19 21:20:41,695 WARN L202 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 11925 DAG size of output: 11758 [2021-02-19 21:20:42,637 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 4242 DAG size of output: 5183 [2021-02-19 21:20:43,057 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 4131 [2021-02-19 21:20:43,381 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 3714 DAG size of output: 3693 [2021-02-19 21:20:43,510 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 2286 DAG size of output: 2286 [2021-02-19 21:20:44,650 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 3348 DAG size of output: 3254 [2021-02-19 21:20:44,779 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1995 DAG size of output: 1995 [2021-02-19 21:20:47,730 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 4223 DAG size of output: 3861 [2021-02-19 21:20:47,915 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 5267 DAG size of output: 4817 [2021-02-19 21:20:48,538 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 5890 DAG size of output: 5384 [2021-02-19 21:20:49,444 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 6718 DAG size of output: 6097 [2021-02-19 21:20:49,877 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 9209 DAG size of output: 8440 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown