/usr/bin/java -Xmx8000000000 -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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 19:03:42,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 19:03:42,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 19:03:42,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 19:03:42,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 19:03:42,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 19:03:42,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 19:03:42,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 19:03:42,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 19:03:42,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 19:03:42,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 19:03:42,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 19:03:42,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 19:03:42,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 19:03:42,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 19:03:42,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 19:03:42,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 19:03:42,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 19:03:42,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 19:03:42,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 19:03:42,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 19:03:42,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 19:03:42,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 19:03:42,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 19:03:42,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 19:03:42,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 19:03:42,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 19:03:42,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 19:03:42,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 19:03:42,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 19:03:42,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 19:03:42,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 19:03:42,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 19:03:42,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 19:03:42,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 19:03:42,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 19:03:42,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 19:03:42,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 19:03:42,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 19:03:42,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 19:03:42,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 19:03:42,321 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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-14 19:03:42,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 19:03:42,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 19:03:42,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 19:03:42,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 19:03:42,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 19:03:42,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 19:03:42,339 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 19:03:42,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 19:03:42,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 19:03:42,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 19:03:42,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 19:03:42,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 19:03:42,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 19:03:42,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 19:03:42,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 19:03:42,342 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 19:03:42,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 19:03:42,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 19:03:42,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 19:03:42,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 19:03:42,343 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 19:03:42,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 19:03:42,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 19:03:42,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 19:03:42,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 19:03:42,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 19:03:42,626 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 19:03:42,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-07-14 19:03:42,627 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-07-14 19:03:42,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 19:03:42,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 19:03:42,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 19:03:42,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 19:03:42,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 19:03:42,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 19:03:42,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 19:03:42,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 19:03:42,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 19:03:42,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/1) ... [2021-07-14 19:03:42,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 19:03:42,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 19:03:42,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 19:03:42,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 19:03:42,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (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 [2021-07-14 19:03:42,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 19:03:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 19:03:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 19:03:42,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 19:03:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 19:03:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 19:03:42,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 19:03:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 19:03:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 19:03:42,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 19:03:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 19:03:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 19:03:42,755 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 19:03:42,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 19:03:42,877 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 19:03:42,878 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:03:42 BoogieIcfgContainer [2021-07-14 19:03:42,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 19:03:42,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 19:03:42,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 19:03:42,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 19:03:42,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:03:42" (1/2) ... [2021-07-14 19:03:42,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb8c9f2 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:03:42, skipping insertion in model container [2021-07-14 19:03:42,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:03:42" (2/2) ... [2021-07-14 19:03:42,883 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-07-14 19:03:42,887 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 19:03:42,887 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 19:03:42,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 19:03:42,887 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 19:03:42,912 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 19:03:42,948 INFO L255 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 [2021-07-14 19:03:43,004 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 19:03:43,004 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 19:03:43,004 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 19:03:43,004 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 19:03:43,004 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 19:03:43,004 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 19:03:43,004 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 19:03:43,004 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 19:03:43,157 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:03:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:03:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash -672311696, now seen corresponding path program 1 times [2021-07-14 19:03:43,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:03:43,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094196192] [2021-07-14 19:03:43,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:03:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:03:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 19:03:43,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:03:43,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094196192] [2021-07-14 19:03:43,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094196192] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:43,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334558280] [2021-07-14 19:03:43,422 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 [2021-07-14 19:03:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:03:43,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 19:03:43,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:03:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:03:43,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334558280] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:43,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:03:43,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-07-14 19:03:43,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704743697] [2021-07-14 19:03:43,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 19:03:43,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:03:43,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 19:03:43,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-14 19:03:43,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:43,635 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:03:43,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:03:43,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 19:03:43,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 19:03:43,985 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:03:43,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:03:43,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1511774198, now seen corresponding path program 2 times [2021-07-14 19:03:43,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:03:43,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350040742] [2021-07-14 19:03:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:03:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:03:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:03:44,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:03:44,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350040742] [2021-07-14 19:03:44,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350040742] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:44,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383842788] [2021-07-14 19:03:44,113 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 [2021-07-14 19:03:44,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 19:03:44,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:03:44,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 19:03:44,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:03:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:03:44,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383842788] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:44,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:03:44,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-07-14 19:03:44,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783765289] [2021-07-14 19:03:44,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 19:03:44,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:03:44,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 19:03:44,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-07-14 19:03:44,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:44,293 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:03:44,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:03:44,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 19:03:44,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 19:03:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 19:03:44,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:03:44,653 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:03:44,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:03:44,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1205043563, now seen corresponding path program 3 times [2021-07-14 19:03:44,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:03:44,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480078369] [2021-07-14 19:03:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:03:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:03:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 19:03:44,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:03:44,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480078369] [2021-07-14 19:03:44,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480078369] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:44,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134109138] [2021-07-14 19:03:44,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:03:44,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 19:03:44,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:03:44,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 19:03:44,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:03:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 19:03:45,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134109138] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:45,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:03:45,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 19:03:45,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506181540] [2021-07-14 19:03:45,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 19:03:45,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:03:45,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 19:03:45,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-07-14 19:03:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:45,095 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:03:45,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 19 states have internal predecessors, (77), 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) [2021-07-14 19:03:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 19:03:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 19:03:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:03:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 19:03:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 19:03:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 19:03:45,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:03:45,897 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:03:45,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:03:45,897 INFO L82 PathProgramCache]: Analyzing trace with hash 558443225, now seen corresponding path program 4 times [2021-07-14 19:03:45,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:03:45,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340533360] [2021-07-14 19:03:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:03:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:03:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 19:03:47,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:03:47,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340533360] [2021-07-14 19:03:47,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340533360] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:03:47,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045847193] [2021-07-14 19:03:47,202 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:03:47,243 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 19:03:47,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:03:47,245 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-14 19:03:47,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:03:52,915 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 67 [2021-07-14 19:03:55,027 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 19:03:57,134 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 19:03:59,284 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 75 [2021-07-14 19:04:01,381 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 70 [2021-07-14 19:04:01,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,431 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 111 [2021-07-14 19:04:01,442 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 19:04:01,454 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:04:01,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:04:01,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:04:01,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 77 [2021-07-14 19:04:01,473 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 19:04:01,484 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:04:01,656 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 19:04:01,656 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:04:01,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-07-14 19:04:01,972 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2021-07-14 19:04:02,406 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2021-07-14 19:04:03,286 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 179 [2021-07-14 19:04:05,030 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 242 DAG size of output: 201 [2021-07-14 19:04:09,247 WARN L205 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 273 DAG size of output: 220 [2021-07-14 19:04:12,787 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 273 DAG size of output: 220 [2021-07-14 19:04:16,472 WARN L205 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 295 DAG size of output: 242 [2021-07-14 19:04:19,947 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 232 DAG size of output: 232 [2021-07-14 19:04:20,285 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 150 [2021-07-14 19:04:20,730 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 175 [2021-07-14 19:04:21,765 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 221 DAG size of output: 196 [2021-07-14 19:04:24,451 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 251 DAG size of output: 213 [2021-07-14 19:04:29,753 WARN L205 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 218 DAG size of output: 230 [2021-07-14 19:04:31,183 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 210 DAG size of output: 210 [2021-07-14 19:04:31,351 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 135 [2021-07-14 19:04:31,747 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 156 [2021-07-14 19:04:32,710 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 188 [2021-07-14 19:04:33,291 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 192 [2021-07-14 19:04:33,508 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 143 [2021-07-14 19:04:33,831 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 150 [2021-07-14 19:04:34,642 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 189 [2021-07-14 19:04:36,530 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 213 DAG size of output: 215 [2021-07-14 19:04:36,747 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 176 [2021-07-14 19:04:37,340 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 257 [2021-07-14 19:04:38,198 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 307 [2021-07-14 19:04:40,521 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 375 DAG size of output: 357 [2021-07-14 19:04:46,433 WARN L205 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 462 DAG size of output: 432 [2021-07-14 19:05:03,365 WARN L205 SmtUtils]: Spent 16.93 s on a formula simplification. DAG size of input: 538 DAG size of output: 508 [2021-07-14 19:05:46,658 WARN L205 SmtUtils]: Spent 43.29 s on a formula simplification. DAG size of input: 615 DAG size of output: 568 [2021-07-14 19:07:25,657 WARN L205 SmtUtils]: Spent 1.65 m on a formula simplification. DAG size of input: 695 DAG size of output: 636 [2021-07-14 19:11:22,035 WARN L205 SmtUtils]: Spent 3.94 m on a formula simplification. DAG size of input: 786 DAG size of output: 707 [2021-07-14 19:15:15,499 WARN L205 SmtUtils]: Spent 3.89 m on a formula simplification. DAG size of input: 786 DAG size of output: 707 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown