/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-NewStatesSleep-NoLbe-Lockstep.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-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 06:24:36,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 06:24:36,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 06:24:36,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 06:24:36,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 06:24:36,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 06:24:36,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 06:24:36,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 06:24:36,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 06:24:36,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 06:24:36,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 06:24:36,283 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 06:24:36,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 06:24:36,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 06:24:36,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 06:24:36,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 06:24:36,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 06:24:36,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 06:24:36,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 06:24:36,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 06:24:36,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 06:24:36,286 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 06:24:36,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 06:24:36,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 06:24:36,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 06:24:36,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 06:24:36,287 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 06:24:36,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 06:24:36,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 06:24:36,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 06:24:36,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 06:24:36,579 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 06:24:36,579 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 06:24:36,580 INFO L432 ainManager$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 [2021-07-14 06:24:36,580 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2021-07-14 06:24:36,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 06:24:36,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 06:24:36,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 06:24:36,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 06:24:36,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 06:24:36,608 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 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,613 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 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 06:24:36,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 06:24:36,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 06:24:36,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 06:24:36,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/1) ... [2021-07-14 06:24:36,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 06:24:36,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 06:24:36,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 06:24:36,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 06:24:36,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (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 06:24:36,683 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 06:24:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 06:24:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 06:24:36,683 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 06:24:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 06:24:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 06:24:36,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 06:24:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 06:24:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 06:24:36,685 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 06:24:36,888 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 06:24:36,888 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 06:24:36,890 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:24:36 BoogieIcfgContainer [2021-07-14 06:24:36,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 06:24:36,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 06:24:36,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 06:24:36,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 06:24:36,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:24:36" (1/2) ... [2021-07-14 06:24:36,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7447063b and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 06:24:36, skipping insertion in model container [2021-07-14 06:24:36,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:24:36" (2/2) ... [2021-07-14 06:24:36,909 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2021-07-14 06:24:36,913 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 06:24:36,913 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 06:24:36,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 06:24:36,918 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 06:24:36,968 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 06:24:36,982 INFO L255 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 [2021-07-14 06:24:37,033 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 06:24:37,033 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 06:24:37,033 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 06:24:37,033 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 06:24:37,034 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 06:24:37,034 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 06:24:37,034 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 06:24:37,034 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 06:24:37,081 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:24:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:24:37,087 INFO L82 PathProgramCache]: Analyzing trace with hash 2065750347, now seen corresponding path program 1 times [2021-07-14 06:24:37,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:24:37,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126476574] [2021-07-14 06:24:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:24:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:24:37,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:24:37,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126476574] [2021-07-14 06:24:37,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126476574] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:37,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437566352] [2021-07-14 06:24:37,303 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 06:24:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:37,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 06:24:37,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:24:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:24:37,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437566352] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:37,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:24:37,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 06:24:37,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20453955] [2021-07-14 06:24:37,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 06:24:37,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:24:37,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 06:24:37,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-14 06:24:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:37,640 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:24:37,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:24:37,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 06:24:38,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 06:24:38,011 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:24:38,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:24:38,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1774725467, now seen corresponding path program 1 times [2021-07-14 06:24:38,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:24:38,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725458339] [2021-07-14 06:24:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:24:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:24:38,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:24:38,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725458339] [2021-07-14 06:24:38,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725458339] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:38,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632297094] [2021-07-14 06:24:38,517 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 [2021-07-14 06:24:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:38,546 WARN L261 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 06:24:38,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:24:38,796 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 20 treesize of output 12 [2021-07-14 06:24:38,798 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 06:24:38,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 06:24:38,802 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 06:24:38,803 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:9 [2021-07-14 06:24:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:24:38,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632297094] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:38,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:24:38,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2021-07-14 06:24:38,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72215281] [2021-07-14 06:24:38,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 06:24:38,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:24:38,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 06:24:38,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2021-07-14 06:24:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:38,875 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:24:38,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 23 states have internal predecessors, (53), 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 06:24:38,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 06:24:38,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 06:24:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 06:24:40,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:24:40,073 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:24:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:24:40,073 INFO L82 PathProgramCache]: Analyzing trace with hash 150861418, now seen corresponding path program 2 times [2021-07-14 06:24:40,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:24:40,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599162688] [2021-07-14 06:24:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:24:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 21 proven. 34 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-07-14 06:24:40,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:24:40,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599162688] [2021-07-14 06:24:40,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599162688] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:40,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942048876] [2021-07-14 06:24:40,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:24:40,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 06:24:40,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:24:40,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 06:24:40,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:24:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-07-14 06:24:40,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942048876] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:40,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:24:40,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-07-14 06:24:40,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369990765] [2021-07-14 06:24:40,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 06:24:40,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:24:40,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 06:24:40,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 06:24:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:40,269 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:24:40,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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 06:24:40,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 06:24:40,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 06:24:40,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 06:24:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 06:24:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:24:40,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:24:40,711 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:24:40,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:24:40,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1718143862, now seen corresponding path program 1 times [2021-07-14 06:24:40,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:24:40,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630170146] [2021-07-14 06:24:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:24:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-14 06:24:41,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:24:41,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630170146] [2021-07-14 06:24:41,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630170146] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:41,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051293992] [2021-07-14 06:24:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 06:24:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:41,458 WARN L261 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 65 conjunts are in the unsatisfiable core [2021-07-14 06:24:41,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:24:42,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2021-07-14 06:24:42,494 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 06:24:42,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 06:24:42,496 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 06:24:42,496 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:8 [2021-07-14 06:24:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:24:42,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051293992] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:42,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:24:42,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28] total 50 [2021-07-14 06:24:42,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754387880] [2021-07-14 06:24:42,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-07-14 06:24:42,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:24:42,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-07-14 06:24:42,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2205, Unknown=0, NotChecked=0, Total=2550 [2021-07-14 06:24:42,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:42,599 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:24:42,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 2.0980392156862746) internal successors, (107), 50 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:24:42,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 06:24:42,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 06:24:42,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:24:42,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:24:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 06:24:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 06:24:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:24:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 06:24:45,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:24:45,645 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:24:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:24:45,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1982038790, now seen corresponding path program 3 times [2021-07-14 06:24:45,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:24:45,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030925717] [2021-07-14 06:24:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:24:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:24:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-07-14 06:24:46,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:24:46,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030925717] [2021-07-14 06:24:46,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030925717] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:24:46,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855716696] [2021-07-14 06:24:46,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:24:46,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 06:24:46,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:24:46,209 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 65 conjunts are in the unsatisfiable core [2021-07-14 06:24:46,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:24:47,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 06:24:47,448 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-07-14 06:24:47,448 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 06:24:47,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 30 case distinctions, treesize of input 51 treesize of output 307 [2021-07-14 06:24:47,878 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 708 DAG size of output: 417 [2021-07-14 06:24:48,017 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 432 [2021-07-14 06:24:48,471 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1687 DAG size of output: 599 [2021-07-14 06:24:49,156 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 1705 DAG size of output: 621 [2021-07-14 06:24:49,407 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 586 DAG size of output: 592 [2021-07-14 06:24:49,570 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 590 [2021-07-14 06:24:49,732 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 358 [2021-07-14 06:24:50,087 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 400 [2021-07-14 06:24:50,293 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 551 [2021-07-14 06:24:50,503 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 466 [2021-07-14 06:24:50,644 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 403 [2021-07-14 06:24:50,814 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 351 [2021-07-14 06:24:51,052 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 553 DAG size of output: 488 [2021-07-14 06:24:51,267 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 725 DAG size of output: 639 [2021-07-14 06:24:51,659 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 944 DAG size of output: 837 [2021-07-14 06:24:52,352 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 1459 DAG size of output: 1216 [2021-07-14 06:24:53,022 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 1459 DAG size of output: 1216 [2021-07-14 06:24:54,117 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1462 DAG size of output: 1218 [2021-07-14 06:24:55,361 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1157 DAG size of output: 1474 [2021-07-14 06:24:56,722 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 294 [2021-07-14 06:24:57,131 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 425 [2021-07-14 06:24:58,234 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 2785 DAG size of output: 1626 [2021-07-14 06:24:59,349 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 2785 DAG size of output: 1626 [2021-07-14 06:25:00,603 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 2789 DAG size of output: 1630 [2021-07-14 06:25:00,955 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 986 DAG size of output: 970 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown