/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 12:15:54,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 12:15:54,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 12:15:54,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 12:15:54,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-10 12:15:54,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 12:15:54,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 12:15:54,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 12:15:54,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 12:15:54,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 12:15:54,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 12:15:54,826 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 12:15:54,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 12:15:54,827 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 12:15:54,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 12:15:54,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 12:15:54,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 12:15:54,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 12:15:54,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:15:54,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 12:15:54,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 12:15:54,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 12:15:54,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 12:15:54,830 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 12:15:54,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 12:15:55,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 12:15:55,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 12:15:55,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 12:15:55,129 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 12:15:55,130 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 12:15:55,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-07-10 12:15:55,131 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-07-10 12:15:55,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 12:15:55,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 12:15:55,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 12:15:55,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 12:15:55,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 12:15:55,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 12:15:55,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 12:15:55,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 12:15:55,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 12:15:55,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... [2021-07-10 12:15:55,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 12:15:55,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 12:15:55,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 12:15:55,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 12:15:55,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:15:55,240 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 12:15:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 12:15:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 12:15:55,240 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 12:15:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 12:15:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 12:15:55,241 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 12:15:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 12:15:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 12:15:55,241 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 12:15:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 12:15:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 12:15:55,241 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 12:15:55,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 12:15:55,458 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 12:15:55,459 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:15:55 BoogieIcfgContainer [2021-07-10 12:15:55,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 12:15:55,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 12:15:55,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 12:15:55,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 12:15:55,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:15:55" (1/2) ... [2021-07-10 12:15:55,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cede9e5 and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:15:55, skipping insertion in model container [2021-07-10 12:15:55,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:15:55" (2/2) ... [2021-07-10 12:15:55,464 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-07-10 12:15:55,468 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 12:15:55,468 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 12:15:55,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 12:15:55,485 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 12:15:55,529 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 12:15:55,543 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 12:15:55,620 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 12:15:55,620 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 12:15:55,620 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 12:15:55,620 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 12:15:55,620 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 12:15:55,620 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 12:15:55,620 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 12:15:55,620 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 12:15:55,703 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:55,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2121696184, now seen corresponding path program 1 times [2021-07-10 12:15:55,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:55,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666160475] [2021-07-10 12:15:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:55,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:55,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666160475] [2021-07-10 12:15:55,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666160475] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:15:55,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:15:55,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-10 12:15:55,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144432884] [2021-07-10 12:15:55,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-10 12:15:55,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:55,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-10 12:15:55,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-10 12:15:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:55,919 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:55,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-07-10 12:15:55,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:55,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 12:15:55,950 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:55,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:55,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1338925798, now seen corresponding path program 1 times [2021-07-10 12:15:55,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:55,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302778558] [2021-07-10 12:15:55,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:56,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:56,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302778558] [2021-07-10 12:15:56,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302778558] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:56,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726380597] [2021-07-10 12:15:56,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:56,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 12:15:56,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:56,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726380597] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:56,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:56,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-07-10 12:15:56,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170078996] [2021-07-10 12:15:56,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 12:15:56,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:56,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 12:15:56,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-10 12:15:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:56,241 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:56,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:15:56,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:56,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:56,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:56,598 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:56,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:56,598 INFO L82 PathProgramCache]: Analyzing trace with hash 842215812, now seen corresponding path program 1 times [2021-07-10 12:15:56,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:56,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342086995] [2021-07-10 12:15:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:56,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:56,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342086995] [2021-07-10 12:15:56,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342086995] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:56,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23904569] [2021-07-10 12:15:56,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:56,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 12:15:56,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:56,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23904569] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:56,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:56,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-07-10 12:15:56,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068181732] [2021-07-10 12:15:56,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 12:15:56,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:56,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 12:15:56,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-10 12:15:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:56,864 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:56,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:15:56,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:56,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:56,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:57,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:57,119 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:57,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:57,120 INFO L82 PathProgramCache]: Analyzing trace with hash -263743198, now seen corresponding path program 2 times [2021-07-10 12:15:57,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:57,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558538807] [2021-07-10 12:15:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:57,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:57,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558538807] [2021-07-10 12:15:57,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558538807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:57,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172121468] [2021-07-10 12:15:57,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:57,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:15:57,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:15:57,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 12:15:57,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:57,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172121468] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:57,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:57,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-10 12:15:57,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855302504] [2021-07-10 12:15:57,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 12:15:57,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:57,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 12:15:57,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-07-10 12:15:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:57,351 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:57,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:15:57,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:57,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:57,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:57,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:57,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:57,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:57,740 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:57,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1724397376, now seen corresponding path program 3 times [2021-07-10 12:15:57,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:57,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895753392] [2021-07-10 12:15:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:57,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:57,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:57,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895753392] [2021-07-10 12:15:57,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895753392] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:57,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876523534] [2021-07-10 12:15:57,913 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:57,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 12:15:57,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:15:57,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 12:15:57,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:58,174 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:58,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876523534] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:58,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:58,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-10 12:15:58,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388450981] [2021-07-10 12:15:58,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-10 12:15:58,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:58,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-10 12:15:58,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-07-10 12:15:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:58,179 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:58,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:15:58,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:58,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:58,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:58,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:58,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:58,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:15:58,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 12:15:58,477 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:58,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:58,478 INFO L82 PathProgramCache]: Analyzing trace with hash -512544418, now seen corresponding path program 4 times [2021-07-10 12:15:58,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:58,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019096575] [2021-07-10 12:15:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:58,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:58,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019096575] [2021-07-10 12:15:58,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019096575] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:58,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949088864] [2021-07-10 12:15:58,531 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:58,615 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:15:58,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:15:58,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 12:15:58,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:58,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949088864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:58,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:58,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-10 12:15:58,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775605335] [2021-07-10 12:15:58,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 12:15:58,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:58,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 12:15:58,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-07-10 12:15:58,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:58,757 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:58,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:15:58,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:15:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:15:59,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:15:59,210 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:15:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:15:59,210 INFO L82 PathProgramCache]: Analyzing trace with hash -304201220, now seen corresponding path program 5 times [2021-07-10 12:15:59,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:15:59,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400672861] [2021-07-10 12:15:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:15:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:15:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:59,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:15:59,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400672861] [2021-07-10 12:15:59,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400672861] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:59,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042456136] [2021-07-10 12:15:59,504 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 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 [2021-07-10 12:15:59,534 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-10 12:15:59,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:15:59,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-10 12:15:59,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:15:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:15:59,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042456136] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:15:59,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:15:59,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-07-10 12:15:59,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362433032] [2021-07-10 12:15:59,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-10 12:15:59,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:15:59,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-10 12:15:59,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-07-10 12:15:59,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:59,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:15:59,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 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) [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:15:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:15:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:15:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:15:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:15:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:15:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:15:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:15:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:00,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:16:00,197 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:16:00,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:16:00,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1658334106, now seen corresponding path program 6 times [2021-07-10 12:16:00,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:16:00,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803058785] [2021-07-10 12:16:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:16:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:16:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:00,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:16:00,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803058785] [2021-07-10 12:16:00,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803058785] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:00,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784191617] [2021-07-10 12:16:00,264 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 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 [2021-07-10 12:16:00,328 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-10 12:16:00,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:16:00,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 12:16:00,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:16:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:00,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784191617] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:00,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:16:00,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-10 12:16:00,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805741381] [2021-07-10 12:16:00,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 12:16:00,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:16:00,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 12:16:00,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-10 12:16:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:00,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:16:00,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:16:00,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:00,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:00,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:00,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:00,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:00,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 12:16:01,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-10 12:16:01,045 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:16:01,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:16:01,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1444045512, now seen corresponding path program 7 times [2021-07-10 12:16:01,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:16:01,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688379319] [2021-07-10 12:16:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:16:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:16:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:01,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:16:01,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688379319] [2021-07-10 12:16:01,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688379319] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:01,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961062468] [2021-07-10 12:16:01,447 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 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 [2021-07-10 12:16:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:16:01,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-10 12:16:01,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:16:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:02,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961062468] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:02,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:16:02,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-07-10 12:16:02,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955694723] [2021-07-10 12:16:02,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 12:16:02,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:16:02,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 12:16:02,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2021-07-10 12:16:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:02,147 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:16:02,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:16:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:02,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:02,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:02,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:02,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 12:16:02,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 12:16:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:02,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:16:02,609 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:16:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:16:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash -696416298, now seen corresponding path program 8 times [2021-07-10 12:16:02,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:16:02,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023480334] [2021-07-10 12:16:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:16:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:16:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:02,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:16:02,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023480334] [2021-07-10 12:16:02,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023480334] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:02,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695497358] [2021-07-10 12:16:02,722 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:16:02,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:16:02,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:16:02,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-10 12:16:02,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:16:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:02,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695497358] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:02,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:16:02,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-07-10 12:16:02,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210749218] [2021-07-10 12:16:02,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 12:16:02,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:16:02,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 12:16:02,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-07-10 12:16:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:02,962 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:16:02,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:02,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 12:16:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 12:16:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:16:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 12:16:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 12:16:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 12:16:03,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-07-10 12:16:03,659 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 12:16:03,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:16:03,660 INFO L82 PathProgramCache]: Analyzing trace with hash -911418764, now seen corresponding path program 9 times [2021-07-10 12:16:03,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:16:03,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685379955] [2021-07-10 12:16:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:16:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:16:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:16:04,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:16:04,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685379955] [2021-07-10 12:16:04,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685379955] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:16:04,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875246904] [2021-07-10 12:16:04,168 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:16:04,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-10 12:16:04,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:16:04,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-10 12:16:04,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:16:05,216 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-10 12:16:05,490 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-10 12:16:05,982 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2021-07-10 12:16:06,447 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-07-10 12:16:06,770 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-07-10 12:16:07,303 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2021-07-10 12:16:07,641 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-10 12:16:07,943 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_9], 10=[v_prenex_8], 30=[v_prenex_6, v_prenex_7], 39=[A, v_prenex_10]} [2021-07-10 12:16:07,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 12:16:07,956 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 12:16:08,329 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-07-10 12:16:08,330 INFO L628 ElimStorePlain]: treesize reduction 226, result has 65.2 percent of original size [2021-07-10 12:16:08,330 INFO L518 ElimStorePlain]: Eliminatee v_prenex_8 vanished before elimination [2021-07-10 12:16:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:16:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:16:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:16:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:16:08,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:16:08,547 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2021-07-10 12:16:08,548 INFO L354 Elim1Store]: treesize reduction 66, result has 72.2 percent of original size [2021-07-10 12:16:08,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 49 treesize of output 189 [2021-07-10 12:16:15,451 WARN L205 SmtUtils]: Spent 6.69 s on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2021-07-10 12:16:16,853 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 159 DAG size of output: 147 [2021-07-10 12:17:22,942 WARN L205 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 159 DAG size of output: 148 [2021-07-10 12:17:23,075 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 127 [2021-07-10 12:17:23,771 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 12:17:24,095 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 115 [2021-07-10 12:17:24,095 INFO L628 ElimStorePlain]: treesize reduction 316, result has 55.7 percent of original size [2021-07-10 12:17:24,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:24,293 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2021-07-10 12:17:24,294 INFO L354 Elim1Store]: treesize reduction 54, result has 74.9 percent of original size [2021-07-10 12:17:24,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 49 treesize of output 179 [2021-07-10 12:17:24,839 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 137 [2021-07-10 12:17:25,117 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2021-07-10 12:17:25,900 WARN L205 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2021-07-10 12:17:26,047 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 134 [2021-07-10 12:17:26,713 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 134 [2021-07-10 12:17:26,824 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 12:17:27,151 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 106 [2021-07-10 12:17:27,152 INFO L628 ElimStorePlain]: treesize reduction 300, result has 54.9 percent of original size [2021-07-10 12:17:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 12:17:27,376 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-07-10 12:17:27,376 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 12:17:27,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 58 treesize of output 310 [2021-07-10 12:17:27,752 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 228 [2021-07-10 12:17:28,233 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 247 [2021-07-10 12:17:28,429 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 285 [2021-07-10 12:17:29,096 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 253 [2021-07-10 12:17:29,299 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 282 [2021-07-10 12:17:29,581 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 338 [2021-07-10 12:17:30,155 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 537 [2021-07-10 12:17:30,737 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 537 [2021-07-10 12:17:31,391 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 607 DAG size of output: 514 [2021-07-10 12:17:31,742 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 384 [2021-07-10 12:17:31,902 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 279 [2021-07-10 12:17:32,886 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 287 [2021-07-10 12:17:33,156 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 392 [2021-07-10 12:17:33,540 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 442 [2021-07-10 12:17:34,500 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 541 [2021-07-10 12:17:34,683 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 259 [2021-07-10 12:17:34,905 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 273 [2021-07-10 12:17:35,560 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 271 [2021-07-10 12:17:35,797 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 312 [2021-07-10 12:17:36,196 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 393 [2021-07-10 12:17:36,718 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 509 DAG size of output: 435 [2021-07-10 12:17:38,053 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1005 DAG size of output: 839 [2021-07-10 12:17:38,475 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 387 [2021-07-10 12:17:39,274 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-07-10 12:17:39,547 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 337 [2021-07-10 12:17:40,001 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 154 [2021-07-10 12:17:40,639 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 206 [2021-07-10 12:17:41,176 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 215 [2021-07-10 12:17:51,655 WARN L205 SmtUtils]: Spent 10.48 s on a formula simplification. DAG size of input: 558 DAG size of output: 455 [2021-07-10 12:18:20,951 WARN L205 SmtUtils]: Spent 29.29 s on a formula simplification. DAG size of input: 648 DAG size of output: 526 [2021-07-10 12:20:16,468 WARN L205 SmtUtils]: Spent 1.93 m on a formula simplification. DAG size of input: 1506 DAG size of output: 1245 [2021-07-10 12:27:29,147 WARN L205 SmtUtils]: Spent 7.21 m on a formula simplification. DAG size of input: 1506 DAG size of output: 1236 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown