/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.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 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 01:43:20,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 01:43:20,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 01:43:21,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 01:43:21,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-02 01:43:21,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-02 01:43:21,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-02 01:43:21,086 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-DelaySleep-NoLbe.epf [2021-06-02 01:43:21,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 01:43:21,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 01:43:21,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 01:43:21,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 01:43:21,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 01:43:21,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 01:43:21,120 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 01:43:21,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 01:43:21,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 01:43:21,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 01:43:21,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 01:43:21,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 01:43:21,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 01:43:21,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 01:43:21,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 01:43:21,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 01:43:21,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 01:43:21,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 01:43:21,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 01:43:21,123 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-02 01:43:21,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 01:43:21,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 01:43:21,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 01:43:21,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 01:43:21,393 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-02 01:43:21,394 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-02 01:43:21,395 INFO L432 ainManager$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 [2021-06-02 01:43:21,395 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' [2021-06-02 01:43:21,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 01:43:21,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-02 01:43:21,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 01:43:21,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 01:43:21,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 01:43:21,748 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,753 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 01:43:21,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 01:43:21,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 01:43:21,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 01:43:21,767 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,767 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,768 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,768 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,770 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,773 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,774 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 02.06 01:43:21" (1/1) ... [2021-06-02 01:43:21,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 01:43:21,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 01:43:21,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 01:43:21,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 01:43:21,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:43:21" (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 [2021-06-02 01:43:21,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-02 01:43:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-02 01:43:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-02 01:43:21,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-02 01:43:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-02 01:43:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-02 01:43:21,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-02 01:43:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 01:43:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 01:43:21,874 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-02 01:43:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-02 01:43:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-02 01:43:21,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 01:43:22,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 01:43:22,012 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-02 01:43:22,013 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:43:22 BoogieIcfgContainer [2021-06-02 01:43:22,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 01:43:22,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 01:43:22,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 01:43:22,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 01:43:22,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:43:21" (1/2) ... [2021-06-02 01:43:22,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee92c2d and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 01:43:22, skipping insertion in model container [2021-06-02 01:43:22,019 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 02.06 01:43:22" (2/2) ... [2021-06-02 01:43:22,020 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-06-02 01:43:22,024 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 01:43:22,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 01:43:22,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 01:43:22,025 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 01:43:22,055 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-02 01:43:22,074 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 [2021-06-02 01:43:22,147 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 01:43:22,147 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 01:43:22,147 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 01:43:22,148 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 01:43:22,148 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 01:43:22,148 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 01:43:22,148 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 01:43:22,148 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 01:43:22,259 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:22,263 INFO L82 PathProgramCache]: Analyzing trace with hash -837472812, now seen corresponding path program 1 times [2021-06-02 01:43:22,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:22,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974922782] [2021-06-02 01:43:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:22,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:22,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974922782] [2021-06-02 01:43:22,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974922782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:43:22,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:43:22,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 01:43:22,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374654176] [2021-06-02 01:43:22,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:43:22,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:22,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:43:22,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:43:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:22,399 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:22,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:43:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:22,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:22,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 01:43:22,420 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:22,421 INFO L82 PathProgramCache]: Analyzing trace with hash 482321657, now seen corresponding path program 1 times [2021-06-02 01:43:22,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:22,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626055083] [2021-06-02 01:43:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:43:22,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:22,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626055083] [2021-06-02 01:43:22,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626055083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:43:22,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:43:22,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-02 01:43:22,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458719116] [2021-06-02 01:43:22,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-02 01:43:22,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:22,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-02 01:43:22,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-02 01:43:22,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:22,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:22,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-06-02 01:43:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:22,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 01:43:22,508 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:22,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:22,509 INFO L82 PathProgramCache]: Analyzing trace with hash -850517330, now seen corresponding path program 1 times [2021-06-02 01:43:22,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:22,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549918570] [2021-06-02 01:43:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:23,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:23,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549918570] [2021-06-02 01:43:23,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549918570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:23,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215432443] [2021-06-02 01:43:23,010 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 [2021-06-02 01:43:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:23,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-02 01:43:23,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:43:23,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:43:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-02 01:43:23,333 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-02 01:43:23,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:23,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:43:23,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-02 01:43:23,349 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-02 01:43:23,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:23,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-02 01:43:23,362 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-02 01:43:23,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:23,368 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. [2021-06-02 01:43:23,369 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-02 01:43:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:23,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215432443] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:23,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:43:23,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-06-02 01:43:23,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281511897] [2021-06-02 01:43:23,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-02 01:43:23,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:23,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-02 01:43:23,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-02 01:43:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:23,427 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:23,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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) [2021-06-02 01:43:23,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:23,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:23,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:23,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:43:23,825 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:23,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1622545901, now seen corresponding path program 2 times [2021-06-02 01:43:23,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:23,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978295933] [2021-06-02 01:43:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:23,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:23,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978295933] [2021-06-02 01:43:23,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978295933] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:23,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894801358] [2021-06-02 01:43:23,885 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 [2021-06-02 01:43:23,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:43:23,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:43:23,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-02 01:43:23,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:43:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:24,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894801358] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:24,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:43:24,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-02 01:43:24,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609479599] [2021-06-02 01:43:24,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-02 01:43:24,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:24,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-02 01:43:24,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-02 01:43:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:24,050 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:24,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-06-02 01:43:24,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:24,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:24,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:24,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:43:24,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:43:24,454 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:24,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1276293331, now seen corresponding path program 1 times [2021-06-02 01:43:24,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:24,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755643068] [2021-06-02 01:43:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:43:24,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:24,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755643068] [2021-06-02 01:43:24,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755643068] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:24,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509808810] [2021-06-02 01:43:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:43:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:24,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-02 01:43:24,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:43:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:43:24,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509808810] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:24,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:43:24,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-02 01:43:24,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817874598] [2021-06-02 01:43:24,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-02 01:43:24,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:24,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-02 01:43:24,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-02 01:43:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:24,697 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:24,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 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) [2021-06-02 01:43:24,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:24,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:24,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:24,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:43:24,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:43:25,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:43:25,045 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:43:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:43:25,045 INFO L82 PathProgramCache]: Analyzing trace with hash -60790002, now seen corresponding path program 2 times [2021-06-02 01:43:25,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:43:25,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941653131] [2021-06-02 01:43:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:43:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:43:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:25,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:43:25,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941653131] [2021-06-02 01:43:25,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941653131] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:25,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968102428] [2021-06-02 01:43:25,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:43:25,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:43:25,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:43:25,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-02 01:43:25,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:43:31,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:43:31,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:43:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:43:31,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-06-02 01:43:31,507 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-02 01:43:31,517 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:31,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:43:31,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:43:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:43:31,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-06-02 01:43:31,532 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-02 01:43:31,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:31,562 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:43:31,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-06-02 01:43:31,604 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-02 01:43:31,670 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-06-02 01:43:31,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:43:31,675 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-06-02 01:43:31,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:43:31,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968102428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:43:31,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:43:31,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-02 01:43:31,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135652849] [2021-06-02 01:43:31,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-02 01:43:31,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:43:31,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-02 01:43:31,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=737, Unknown=4, NotChecked=0, Total=870 [2021-06-02 01:43:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:43:31,711 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:43:31,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 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) [2021-06-02 01:43:31,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:43:31,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:43:31,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:43:31,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:43:31,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:43:31,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:02,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-02 01:44:02,558 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:44:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:44:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1583660301, now seen corresponding path program 3 times [2021-06-02 01:44:02,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:44:02,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681927828] [2021-06-02 01:44:02,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:44:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:44:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:02,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:44:02,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681927828] [2021-06-02 01:44:02,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681927828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:02,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708860008] [2021-06-02 01:44:02,652 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 [2021-06-02 01:44:02,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-02 01:44:02,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:44:02,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-02 01:44:02,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:44:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:02,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708860008] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:02,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:44:02,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-02 01:44:02,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507888759] [2021-06-02 01:44:02,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-02 01:44:02,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:44:02,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-02 01:44:02,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-02 01:44:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:02,894 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:44:02,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 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) [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:03,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:44:03,601 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:44:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:44:03,601 INFO L82 PathProgramCache]: Analyzing trace with hash -76160589, now seen corresponding path program 4 times [2021-06-02 01:44:03,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:44:03,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087756774] [2021-06-02 01:44:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:44:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:44:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:44:03,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:44:03,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087756774] [2021-06-02 01:44:03,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087756774] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:03,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469875500] [2021-06-02 01:44:03,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:44:03,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 01:44:03,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:44:03,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-02 01:44:03,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:44:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:44:03,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469875500] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:03,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:44:03,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-02 01:44:03,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820742266] [2021-06-02 01:44:03,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-02 01:44:03,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:44:03,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-02 01:44:03,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-02 01:44:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:03,897 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:44:03,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 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) [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:03,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 01:44:04,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:44:04,280 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:44:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:44:04,281 INFO L82 PathProgramCache]: Analyzing trace with hash -886105234, now seen corresponding path program 5 times [2021-06-02 01:44:04,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:44:04,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122922457] [2021-06-02 01:44:04,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:44:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:44:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:05,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:44:05,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122922457] [2021-06-02 01:44:05,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122922457] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:05,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029449101] [2021-06-02 01:44:05,154 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:44:05,185 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-02 01:44:05,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:44:05,187 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-02 01:44:05,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:44:06,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:06,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:06,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-06-02 01:44:06,282 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-02 01:44:06,291 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:06,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:06,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:06,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-02 01:44:06,300 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-02 01:44:06,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:06,360 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:06,360 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 57 treesize of output 137 [2021-06-02 01:44:06,546 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-02 01:44:06,667 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-02 01:44:06,778 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2021-06-02 01:44:07,491 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-06-02 01:44:08,025 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-06-02 01:44:09,201 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-02 01:44:10,260 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-02 01:44:14,003 WARN L205 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-06-02 01:44:14,443 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-02 01:44:14,818 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-02 01:44:17,220 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-06-02 01:44:18,298 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-06-02 01:44:19,291 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-06-02 01:44:20,414 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-06-02 01:44:21,472 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-06-02 01:44:24,925 WARN L205 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-06-02 01:44:25,308 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-02 01:44:25,666 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-02 01:44:27,811 WARN L205 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-06-02 01:44:28,814 WARN L205 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-02 01:44:29,848 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-02 01:44:30,968 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-06-02 01:44:30,971 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-02 01:44:32,537 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-06-02 01:44:32,538 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-06-02 01:44:33,662 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-06-02 01:44:34,537 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-06-02 01:44:34,861 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-02 01:44:35,110 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-02 01:44:35,497 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-02 01:44:36,436 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-02 01:44:36,709 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-02 01:44:37,144 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-02 01:44:37,414 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. [2021-06-02 01:44:37,414 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-06-02 01:44:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:37,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029449101] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:37,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:44:37,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-06-02 01:44:37,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743138072] [2021-06-02 01:44:37,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-02 01:44:37,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:44:37,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-02 01:44:37,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-06-02 01:44:37,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:37,445 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:44:37,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:37,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-02 01:44:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 01:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:39,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-02 01:44:39,921 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:44:39,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:44:39,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1387257236, now seen corresponding path program 6 times [2021-06-02 01:44:39,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:44:39,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907116353] [2021-06-02 01:44:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:44:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:44:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:41,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:44:41,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907116353] [2021-06-02 01:44:41,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907116353] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:41,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363480244] [2021-06-02 01:44:41,107 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:44:41,143 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-02 01:44:41,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:44:41,145 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-02 01:44:41,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:44:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:42,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:42,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:42,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:42,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 93 [2021-06-02 01:44:42,871 INFO L550 ElimStorePlain]: Start of recursive call 2: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-02 01:44:42,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:42,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:42,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:42,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:44:42,890 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:44:42,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 67 [2021-06-02 01:44:42,894 INFO L550 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-02 01:44:42,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:42,987 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:44:42,987 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 67 treesize of output 199 [2021-06-02 01:44:43,528 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-02 01:44:43,932 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-02 01:44:44,396 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 199 [2021-06-02 01:44:45,778 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 197 DAG size of output: 217 [2021-06-02 01:44:47,297 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 192 DAG size of output: 204 [2021-06-02 01:44:48,820 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 187 DAG size of output: 199 [2021-06-02 01:44:49,134 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-06-02 01:44:51,722 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 396 DAG size of output: 343 [2021-06-02 01:44:58,312 WARN L205 SmtUtils]: Spent 6.59 s on a formula simplification. DAG size of input: 462 DAG size of output: 405 [2021-06-02 01:45:14,690 WARN L205 SmtUtils]: Spent 16.38 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-02 01:45:31,014 WARN L205 SmtUtils]: Spent 16.32 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-02 01:45:48,553 WARN L205 SmtUtils]: Spent 17.53 s on a formula simplification. DAG size of input: 542 DAG size of output: 484 [2021-06-02 01:46:43,987 WARN L205 SmtUtils]: Spent 55.43 s on a formula simplification. DAG size of input: 484 DAG size of output: 587 [2021-06-02 01:46:59,875 WARN L205 SmtUtils]: Spent 15.87 s on a formula simplification. DAG size of input: 476 DAG size of output: 476 [2021-06-02 01:47:00,140 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 168 [2021-06-02 01:47:00,248 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 132 [2021-06-02 01:47:00,393 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 126 [2021-06-02 01:47:00,558 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 120 [2021-06-02 01:47:00,687 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-02 01:47:01,011 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 184 [2021-06-02 01:47:01,215 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-06-02 01:47:01,495 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 162 [2021-06-02 01:47:02,632 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 269 DAG size of output: 260 [2021-06-02 01:47:03,063 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 155 [2021-06-02 01:47:03,661 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 179 [2021-06-02 01:47:07,225 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 386 DAG size of output: 360 [2021-06-02 01:47:13,673 WARN L205 SmtUtils]: Spent 6.44 s on a formula simplification. DAG size of input: 409 DAG size of output: 409 [2021-06-02 01:47:16,041 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2021-06-02 01:47:16,177 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2021-06-02 01:47:16,441 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 158 [2021-06-02 01:47:16,762 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 207 [2021-06-02 01:47:16,977 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 135 [2021-06-02 01:47:17,769 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 266 [2021-06-02 01:47:18,536 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 280 [2021-06-02 01:47:18,762 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-06-02 01:47:19,282 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-02 01:47:19,740 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 226 [2021-06-02 01:47:20,542 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 385 [2021-06-02 01:47:20,872 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 130 [2021-06-02 01:47:21,080 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 150 [2021-06-02 01:47:23,891 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 531 DAG size of output: 487 [2021-06-02 01:47:29,231 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 2296 DAG size of output: 2269 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown