/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-Random42.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 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 05:21:27,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 05:21:27,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 05:21:27,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 05:21:27,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 05:21:27,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 05:21:27,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 05:21:27,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 05:21:27,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 05:21:27,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 05:21:27,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 05:21:27,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 05:21:27,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 05:21:27,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 05:21:27,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 05:21:27,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 05:21:27,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-14 05:21:27,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 05:21:27,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 05:21:27,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 05:21:27,244 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-Random42.epf [2021-06-14 05:21:27,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 05:21:27,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 05:21:27,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 05:21:27,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 05:21:27,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 05:21:27,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 05:21:27,282 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 05:21:27,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 05:21:27,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 05:21:27,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 05:21:27,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 05:21:27,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 05:21:27,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 05:21:27,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 05:21:27,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:21:27,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 05:21:27,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 05:21:27,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 05:21:27,287 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 05:21:27,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 05:21:27,287 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 05:21:27,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 05:21:27,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 05:21:27,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 05:21:27,611 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 05:21:27,612 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 05:21:27,612 INFO L432 ainManager$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 [2021-06-14 05:21:27,613 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' [2021-06-14 05:21:27,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 05:21:27,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 05:21:27,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 05:21:27,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 05:21:27,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 05:21:27,651 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,658 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 05:21:27,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 05:21:27,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 05:21:27,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 05:21:27,670 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,670 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,671 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,671 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,673 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,676 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,676 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 14.06 05:21:27" (1/1) ... [2021-06-14 05:21:27,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 05:21:27,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 05:21:27,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 05:21:27,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 05:21:27,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:21:27" (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 [2021-06-14 05:21:27,762 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 05:21:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 05:21:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 05:21:27,763 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 05:21:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 05:21:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 05:21:27,763 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 05:21:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 05:21:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 05:21:27,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 05:21:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 05:21:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 05:21:27,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 05:21:27,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 05:21:27,906 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 05:21:27,908 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:21:27 BoogieIcfgContainer [2021-06-14 05:21:27,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 05:21:27,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 05:21:27,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 05:21:27,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 05:21:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:21:27" (1/2) ... [2021-06-14 05:21:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1c879f and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 05:21:27, skipping insertion in model container [2021-06-14 05:21:27,912 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 14.06 05:21:27" (2/2) ... [2021-06-14 05:21:27,914 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-06-14 05:21:27,918 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 05:21:27,918 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 05:21:27,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 05:21:27,919 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 05:21:27,956 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 05:21:27,974 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 [2021-06-14 05:21:28,041 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 05:21:28,042 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 05:21:28,042 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 05:21:28,042 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 05:21:28,042 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 05:21:28,042 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 05:21:28,042 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 05:21:28,042 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 05:21:28,108 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:21:28,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:21:28,112 INFO L82 PathProgramCache]: Analyzing trace with hash 802788286, now seen corresponding path program 1 times [2021-06-14 05:21:28,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:21:28,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830381275] [2021-06-14 05:21:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:21:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:21:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 05:21:28,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:21:28,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830381275] [2021-06-14 05:21:28,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830381275] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:21:28,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:21:28,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-14 05:21:28,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072947509] [2021-06-14 05:21:28,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 05:21:28,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:21:28,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 05:21:28,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 05:21:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:21:28,350 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:21:28,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-06-14 05:21:28,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:21:28,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:21:28,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 05:21:28,475 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:21:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:21:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash 149275868, now seen corresponding path program 1 times [2021-06-14 05:21:28,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:21:28,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844746408] [2021-06-14 05:21:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:21:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:21:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 05:21:28,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:21:28,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844746408] [2021-06-14 05:21:28,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844746408] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:21:28,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796619136] [2021-06-14 05:21:28,619 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 [2021-06-14 05:21:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:21:28,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 05:21:28,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:21:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 05:21:28,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796619136] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:21:28,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:21:28,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-14 05:21:28,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024379134] [2021-06-14 05:21:29,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 05:21:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:21:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 05:21:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-06-14 05:21:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:21:29,002 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:21:29,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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) [2021-06-14 05:21:29,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:21:29,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:21:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:21:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-14 05:21:29,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:21:29,693 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:21:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:21:29,693 INFO L82 PathProgramCache]: Analyzing trace with hash -56167373, now seen corresponding path program 2 times [2021-06-14 05:21:29,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:21:29,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948824094] [2021-06-14 05:21:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:21:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:21:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:21:30,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:21:30,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948824094] [2021-06-14 05:21:30,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948824094] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:21:30,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715681068] [2021-06-14 05:21:30,326 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 [2021-06-14 05:21:30,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:21:30,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:21:30,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-14 05:21:30,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:21:31,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,079 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:21:31,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 79 [2021-06-14 05:21:31,383 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-14 05:21:31,410 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:21:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:21:31,439 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:21:31,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 65 [2021-06-14 05:21:31,681 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-14 05:21:31,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:21:31,806 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:21:31,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 133 [2021-06-14 05:21:32,173 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 129 [2021-06-14 05:21:32,352 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 129 [2021-06-14 05:21:32,516 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 148 [2021-06-14 05:21:32,728 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 136 [2021-06-14 05:21:33,507 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 215 [2021-06-14 05:21:33,914 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2021-06-14 05:21:34,568 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 295 [2021-06-14 05:21:34,718 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2021-06-14 05:21:35,356 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 148 [2021-06-14 05:21:36,974 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 377 DAG size of output: 367 [2021-06-14 05:21:37,442 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2021-06-14 05:21:41,753 WARN L205 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 443 DAG size of output: 435 [2021-06-14 05:21:46,099 WARN L205 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 443 DAG size of output: 435 [2021-06-14 05:21:50,519 WARN L205 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 443 DAG size of output: 435 [2021-06-14 05:21:54,024 WARN L205 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 430 DAG size of output: 434 [2021-06-14 05:21:54,031 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-14 05:21:59,566 WARN L205 SmtUtils]: Spent 5.54 s on a formula simplification. DAG size of input: 447 DAG size of output: 390 [2021-06-14 05:21:59,568 INFO L628 ElimStorePlain]: treesize reduction 16260, result has 81.3 percent of original size [2021-06-14 05:22:02,473 WARN L205 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 390 DAG size of output: 393 [2021-06-14 05:22:05,159 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 373 DAG size of output: 376 [2021-06-14 05:22:05,309 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 230 [2021-06-14 05:22:05,799 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 230 [2021-06-14 05:22:06,428 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2021-06-14 05:22:06,601 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 184 [2021-06-14 05:22:07,069 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:22:07,070 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:74, output treesize:22 [2021-06-14 05:22:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:22:07,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715681068] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:22:07,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:22:07,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 32 [2021-06-14 05:22:07,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353912972] [2021-06-14 05:22:07,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-14 05:22:07,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:22:07,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-14 05:22:07,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2021-06-14 05:22:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:22:07,158 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:22:07,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 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) [2021-06-14 05:22:07,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:22:07,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-14 05:22:07,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:22:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:22:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 05:22:09,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-14 05:22:09,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:22:09,353 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:22:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:22:09,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1262687480, now seen corresponding path program 3 times [2021-06-14 05:22:09,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:22:09,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314951193] [2021-06-14 05:22:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:22:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:22:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:22:09,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:22:09,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314951193] [2021-06-14 05:22:09,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314951193] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:22:09,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086405139] [2021-06-14 05:22:09,968 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 [2021-06-14 05:22:10,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-14 05:22:10,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:22:10,002 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 43 conjunts are in the unsatisfiable core [2021-06-14 05:22:10,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:22:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:22:10,805 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:22:10,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 83 treesize of output 137 [2021-06-14 05:22:13,110 INFO L550 ElimStorePlain]: Start of recursive call 2: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-14 05:22:13,170 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:22:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:22:13,226 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:22:13,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 65 treesize of output 119 [2021-06-14 05:22:15,506 INFO L550 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-14 05:22:15,616 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-06-14 05:22:15,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:22:15,754 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:22:15,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 47 treesize of output 195 [2021-06-14 05:22:15,984 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 162 [2021-06-14 05:22:16,395 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 189 [2021-06-14 05:22:16,802 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 189 [2021-06-14 05:22:17,287 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 216 [2021-06-14 05:22:18,890 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 211 DAG size of output: 226 [2021-06-14 05:22:20,510 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 206 DAG size of output: 215 [2021-06-14 05:22:20,927 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 198 [2021-06-14 05:22:21,546 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 195 [2021-06-14 05:22:21,711 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 172 [2021-06-14 05:22:22,404 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 145 [2021-06-14 05:22:22,694 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 193 [2021-06-14 05:22:23,339 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 250 [2021-06-14 05:22:25,014 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 358 DAG size of output: 294 [2021-06-14 05:22:29,369 WARN L205 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 403 DAG size of output: 336 [2021-06-14 05:22:29,774 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 155 [2021-06-14 05:22:30,344 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 189 [2021-06-14 05:22:31,796 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 231 DAG size of output: 208 [2021-06-14 05:22:44,103 WARN L205 SmtUtils]: Spent 12.31 s on a formula simplification. DAG size of input: 514 DAG size of output: 426 [2021-06-14 05:23:14,046 WARN L205 SmtUtils]: Spent 29.94 s on a formula simplification. DAG size of input: 569 DAG size of output: 472 [2021-06-14 05:24:25,320 WARN L205 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 625 DAG size of output: 521 [2021-06-14 05:25:36,606 WARN L205 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 625 DAG size of output: 521 [2021-06-14 05:26:49,145 WARN L205 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 633 DAG size of output: 529 [2021-06-14 05:26:49,499 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 176 [2021-06-14 05:26:49,824 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 140 [2021-06-14 05:26:50,192 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2021-06-14 05:26:51,210 WARN L205 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2021-06-14 05:26:53,659 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 231 DAG size of output: 228 [2021-06-14 05:27:00,011 WARN L205 SmtUtils]: Spent 6.32 s on a formula simplification. DAG size of input: 238 DAG size of output: 235 [2021-06-14 05:27:00,146 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 156 [2021-06-14 05:27:00,349 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 129 [2021-06-14 05:27:00,546 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 124 [2021-06-14 05:27:01,176 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 122 [2021-06-14 05:27:01,414 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2021-06-14 05:27:02,094 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 243 [2021-06-14 05:27:03,866 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 303 DAG size of output: 298 [2021-06-14 05:27:08,754 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 310 DAG size of output: 305 [2021-06-14 05:27:08,998 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2021-06-14 05:27:09,387 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 148 [2021-06-14 05:27:10,311 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 197 [2021-06-14 05:27:12,961 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 213 DAG size of output: 207 [2021-06-14 05:27:19,059 WARN L205 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 220 DAG size of output: 214 [2021-06-14 05:27:37,478 WARN L205 SmtUtils]: Spent 18.42 s on a formula simplification. DAG size of input: 453 DAG size of output: 442 [2021-06-14 05:28:29,070 WARN L205 SmtUtils]: Spent 51.59 s on a formula simplification. DAG size of input: 589 DAG size of output: 576 [2021-06-14 05:30:12,046 WARN L205 SmtUtils]: Spent 1.72 m on a formula simplification. DAG size of input: 455 DAG size of output: 551 [2021-06-14 05:30:12,642 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 151 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown