/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 17:07:44,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 17:07:44,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 17:07:44,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 17:07:44,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 17:07:44,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 17:07:44,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 17:07:44,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 17:07:44,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 17:07:44,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 17:07:44,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 17:07:44,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 17:07:44,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 17:07:44,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 17:07:44,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 17:07:44,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 17:07:44,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 17:07:44,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-06-13 17:07:44,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 17:07:44,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 17:07:44,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 17:07:44,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 17:07:44,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 17:07:44,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 17:07:44,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 17:07:44,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 17:07:44,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 17:07:44,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 17:07:44,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 17:07:44,226 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 17:07:44,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 17:07:44,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 17:07:44,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 17:07:44,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 17:07:44,453 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 17:07:44,457 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 17:07:44,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl [2021-06-13 17:07:44,458 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-06-13 17:07:44,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 17:07:44,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 17:07:44,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 17:07:44,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 17:07:44,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 17:07:44,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 17:07:44,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 17:07:44,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 17:07:44,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 17:07:44,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/1) ... [2021-06-13 17:07:44,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 17:07:44,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 17:07:44,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 17:07:44,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 17:07:44,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (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 [2021-06-13 17:07:44,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 17:07:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 17:07:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 17:07:44,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 17:07:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 17:07:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 17:07:44,558 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 17:07:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 17:07:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 17:07:44,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 17:07:44,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 17:07:44,661 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 17:07:44,662 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:07:44 BoogieIcfgContainer [2021-06-13 17:07:44,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 17:07:44,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 17:07:44,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 17:07:44,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 17:07:44,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 05:07:44" (1/2) ... [2021-06-13 17:07:44,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636a39fd and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 05:07:44, skipping insertion in model container [2021-06-13 17:07:44,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 05:07:44" (2/2) ... [2021-06-13 17:07:44,667 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-06-13 17:07:44,670 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 17:07:44,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 17:07:44,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 17:07:44,671 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 17:07:44,690 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 17:07:44,704 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 17:07:44,755 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 17:07:44,755 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 17:07:44,756 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 17:07:44,756 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 17:07:44,756 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 17:07:44,756 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 17:07:44,756 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 17:07:44,756 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 17:07:44,806 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1635099045, now seen corresponding path program 1 times [2021-06-13 17:07:44,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:44,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078310313] [2021-06-13 17:07:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:44,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:44,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078310313] [2021-06-13 17:07:44,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078310313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 17:07:44,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 17:07:44,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 17:07:44,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275687790] [2021-06-13 17:07:44,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 17:07:44,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:44,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 17:07:44,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 17:07:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:44,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:44,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-06-13 17:07:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:44,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 17:07:44,935 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:44,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2119693475, now seen corresponding path program 1 times [2021-06-13 17:07:44,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:44,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524256142] [2021-06-13 17:07:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:45,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:45,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524256142] [2021-06-13 17:07:45,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524256142] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:45,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810678345] [2021-06-13 17:07:45,037 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) [2021-06-13 17:07:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:45,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:45,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:45,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810678345] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:45,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:45,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-06-13 17:07:45,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740369891] [2021-06-13 17:07:45,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 17:07:45,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:45,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 17:07:45,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 17:07:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:45,247 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:45,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-06-13 17:07:45,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:45,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:45,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:45,554 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:45,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1624375643, now seen corresponding path program 1 times [2021-06-13 17:07:45,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:45,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922008455] [2021-06-13 17:07:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:45,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:45,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922008455] [2021-06-13 17:07:45,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922008455] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:45,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366634469] [2021-06-13 17:07:45,714 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 [2021-06-13 17:07:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:45,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-13 17:07:45,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:45,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:45,940 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 7 [2021-06-13 17:07:45,942 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 17:07:45,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:45,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 17:07:45,949 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-06-13 17:07:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:45,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366634469] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:45,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:45,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-13 17:07:45,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146479233] [2021-06-13 17:07:45,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 17:07:45,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:45,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 17:07:45,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-13 17:07:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:45,968 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:45,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-06-13 17:07:45,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:45,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:45,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:46,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:46,216 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:46,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:46,217 INFO L82 PathProgramCache]: Analyzing trace with hash 210936483, now seen corresponding path program 2 times [2021-06-13 17:07:46,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:46,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172898111] [2021-06-13 17:07:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:46,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:46,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172898111] [2021-06-13 17:07:46,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172898111] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:46,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940083478] [2021-06-13 17:07:46,272 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 [2021-06-13 17:07:46,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 17:07:46,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:46,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 17:07:46,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:46,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940083478] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:46,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:46,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-13 17:07:46,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134191059] [2021-06-13 17:07:46,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-13 17:07:46,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-13 17:07:46,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-06-13 17:07:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:46,403 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:46,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 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) [2021-06-13 17:07:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:46,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:46,744 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:46,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1988809563, now seen corresponding path program 3 times [2021-06-13 17:07:46,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:46,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658262858] [2021-06-13 17:07:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:46,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:46,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658262858] [2021-06-13 17:07:46,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658262858] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:46,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672423537] [2021-06-13 17:07:46,840 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 [2021-06-13 17:07:46,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-13 17:07:46,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:46,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-13 17:07:46,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:47,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:47,090 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:47,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 29 [2021-06-13 17:07:47,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-13 17:07:47,119 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:47,139 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-13 17:07:47,139 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-06-13 17:07:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:47,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672423537] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:47,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:47,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-06-13 17:07:47,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110204763] [2021-06-13 17:07:47,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-13 17:07:47,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:47,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-13 17:07:47,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-06-13 17:07:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:47,201 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:47,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 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) [2021-06-13 17:07:47,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:47,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:47,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:47,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:47,523 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:47,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1839673567, now seen corresponding path program 4 times [2021-06-13 17:07:47,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:47,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572390773] [2021-06-13 17:07:47,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:47,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:47,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572390773] [2021-06-13 17:07:47,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572390773] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:47,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953000138] [2021-06-13 17:07:47,603 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 [2021-06-13 17:07:47,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 17:07:47,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:47,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 17:07:47,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:47,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953000138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:47,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:47,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-13 17:07:47,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113835284] [2021-06-13 17:07:47,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-13 17:07:47,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:47,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-13 17:07:47,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-06-13 17:07:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:47,759 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:47,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 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) [2021-06-13 17:07:47,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:47,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:47,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:47,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:48,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:48,189 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:48,189 INFO L82 PathProgramCache]: Analyzing trace with hash -40043611, now seen corresponding path program 5 times [2021-06-13 17:07:48,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:48,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653366685] [2021-06-13 17:07:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:48,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:48,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653366685] [2021-06-13 17:07:48,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653366685] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:48,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219821253] [2021-06-13 17:07:48,541 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 [2021-06-13 17:07:48,576 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-13 17:07:48,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:48,577 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-13 17:07:48,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:48,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:48,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:48,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:48,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:48,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 7 [2021-06-13 17:07:48,887 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 17:07:48,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:48,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 17:07:48,893 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-06-13 17:07:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:48,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219821253] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:48,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:48,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-06-13 17:07:48,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328522296] [2021-06-13 17:07:48,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-13 17:07:48,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:48,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-13 17:07:48,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-06-13 17:07:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:48,914 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:48,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:48,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:49,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:49,973 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:49,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:49,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1812733093, now seen corresponding path program 6 times [2021-06-13 17:07:49,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:49,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363206754] [2021-06-13 17:07:49,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:50,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:50,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363206754] [2021-06-13 17:07:50,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363206754] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:50,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303812571] [2021-06-13 17:07:50,368 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 [2021-06-13 17:07:50,395 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-13 17:07:50,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:50,396 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-13 17:07:50,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:51,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:51,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:51,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:51,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:51,324 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:51,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 81 treesize of output 95 [2021-06-13 17:07:51,404 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-13 17:07:51,452 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-06-13 17:07:51,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-13 17:07:51,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-06-13 17:07:51,517 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:51,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303812571] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:51,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:51,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-06-13 17:07:51,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297109213] [2021-06-13 17:07:51,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-13 17:07:51,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-13 17:07:51,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-06-13 17:07:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:51,520 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:51,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 33 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) [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:53,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-13 17:07:53,153 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:53,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:53,153 INFO L82 PathProgramCache]: Analyzing trace with hash -668528987, now seen corresponding path program 7 times [2021-06-13 17:07:53,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:53,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523962418] [2021-06-13 17:07:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:53,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:53,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523962418] [2021-06-13 17:07:53,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523962418] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:53,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402993188] [2021-06-13 17:07:53,600 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 [2021-06-13 17:07:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:53,627 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-06-13 17:07:53,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:54,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:54,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:54,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 7 [2021-06-13 17:07:54,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 17:07:54,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:54,226 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 17:07:54,226 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-06-13 17:07:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:54,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402993188] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:54,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:54,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-06-13 17:07:54,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693919670] [2021-06-13 17:07:54,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-13 17:07:54,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:54,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-13 17:07:54,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-06-13 17:07:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:54,247 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:54,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 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) [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:54,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:55,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:55,721 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:55,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:55,721 INFO L82 PathProgramCache]: Analyzing trace with hash 2110591397, now seen corresponding path program 8 times [2021-06-13 17:07:55,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:55,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905645764] [2021-06-13 17:07:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:56,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:56,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905645764] [2021-06-13 17:07:56,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905645764] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:56,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076006588] [2021-06-13 17:07:56,243 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 [2021-06-13 17:07:56,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 17:07:56,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:56,280 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-13 17:07:56,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:07:56,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:07:56,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,996 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:07:56,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 21 disjoint index pairs (out of 91 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 7 [2021-06-13 17:07:56,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 17:07:57,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:07:57,004 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 17:07:57,004 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-06-13 17:07:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:57,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076006588] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:57,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 17:07:57,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-06-13 17:07:57,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112990577] [2021-06-13 17:07:57,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-13 17:07:57,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 17:07:57,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-13 17:07:57,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-06-13 17:07:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:57,033 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 17:07:57,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 36 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:57,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-13 17:07:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-13 17:07:58,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 17:07:58,995 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 17:07:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 17:07:59,004 INFO L82 PathProgramCache]: Analyzing trace with hash -900897371, now seen corresponding path program 9 times [2021-06-13 17:07:59,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 17:07:59,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500252927] [2021-06-13 17:07:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 17:07:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 17:07:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 17:07:59,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 17:07:59,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500252927] [2021-06-13 17:07:59,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500252927] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 17:07:59,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688878960] [2021-06-13 17:07:59,653 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 [2021-06-13 17:07:59,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-13 17:07:59,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 17:07:59,690 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-13 17:07:59,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 17:08:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:08:03,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:08:03,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:08:03,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-13 17:08:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-13 17:08:04,088 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-13 17:08:04,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 17:08:04,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 141 treesize of output 487 [2021-06-13 17:08:04,983 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-06-13 17:08:05,245 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-06-13 17:08:05,501 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-06-13 17:08:05,993 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-06-13 17:08:06,290 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-06-13 17:08:06,836 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-06-13 17:08:07,011 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-06-13 17:08:07,674 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-06-13 17:08:08,092 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-06-13 17:08:08,858 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-06-13 17:08:09,690 WARN L205 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-06-13 17:08:10,918 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-06-13 17:08:12,731 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-06-13 17:08:14,856 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-06-13 17:08:15,557 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-06-13 17:08:15,771 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-06-13 17:08:16,049 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-06-13 17:08:16,491 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 297 [2021-06-13 17:08:16,625 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-06-13 17:08:17,206 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-06-13 17:08:18,098 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-06-13 17:08:18,723 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-06-13 17:08:19,529 WARN L205 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-06-13 17:08:20,907 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-06-13 17:08:21,620 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-13 17:08:21,763 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-06-13 17:08:22,120 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-06-13 17:08:22,499 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-06-13 17:08:23,310 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-06-13 17:08:25,719 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-06-13 17:08:31,125 WARN L205 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-13 17:08:36,518 WARN L205 SmtUtils]: Spent 5.39 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-13 17:08:42,006 WARN L205 SmtUtils]: Spent 5.48 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-06-13 17:08:44,473 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-06-13 17:08:47,152 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-06-13 17:08:48,952 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-06-13 17:08:49,659 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-06-13 17:08:51,434 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-06-13 17:08:51,998 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-06-13 17:08:53,053 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-06-13 17:08:53,822 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-06-13 17:08:54,569 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-06-13 17:08:54,732 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-06-13 17:08:55,113 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-06-13 17:08:56,240 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-06-13 17:08:59,700 WARN L205 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-06-13 17:09:04,853 WARN L205 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-06-13 17:09:12,076 WARN L205 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-06-13 17:09:12,639 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-06-13 17:09:12,846 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-06-13 17:09:13,335 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-06-13 17:09:13,523 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-06-13 17:09:13,892 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-06-13 17:09:14,107 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-06-13 17:09:14,719 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-06-13 17:09:15,363 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-06-13 17:09:16,006 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-06-13 17:09:16,491 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-13 17:09:16,737 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-06-13 17:09:17,516 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-06-13 17:09:18,119 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-06-13 17:09:18,891 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-06-13 17:09:20,069 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-06-13 17:09:22,385 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-06-13 17:09:22,548 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-06-13 17:09:22,983 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-06-13 17:09:23,638 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-06-13 17:09:24,005 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-06-13 17:09:24,580 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-06-13 17:09:25,343 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-06-13 17:09:25,873 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-06-13 17:09:26,077 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-06-13 17:09:26,556 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-06-13 17:09:27,002 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-06-13 17:09:27,787 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-06-13 17:09:32,435 WARN L205 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-06-13 17:09:39,604 WARN L205 SmtUtils]: Spent 7.08 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-06-13 17:09:49,064 WARN L205 SmtUtils]: Spent 9.45 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-06-13 17:10:08,673 WARN L205 SmtUtils]: Spent 19.60 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-06-13 17:10:09,252 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-06-13 17:10:10,529 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-06-13 17:10:11,643 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-06-13 17:10:12,830 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-06-13 17:10:13,202 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-06-13 17:10:13,358 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-06-13 17:10:13,837 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-06-13 17:10:15,719 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-06-13 17:10:16,411 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-06-13 17:10:16,729 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-06-13 17:10:17,340 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-06-13 17:10:17,900 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-06-13 17:10:20,959 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-06-13 17:10:25,483 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-06-13 17:10:32,044 WARN L205 SmtUtils]: Spent 6.55 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-06-13 17:10:42,719 WARN L205 SmtUtils]: Spent 10.50 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-06-13 17:11:17,495 WARN L205 SmtUtils]: Spent 34.76 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-06-13 17:11:17,632 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-06-13 17:11:20,002 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-06-13 17:11:22,331 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-06-13 17:11:25,249 WARN L205 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-06-13 17:11:25,627 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-06-13 17:11:25,793 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-06-13 17:11:26,121 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-06-13 17:11:26,512 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-06-13 17:11:26,876 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-06-13 17:11:27,496 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-06-13 17:11:27,611 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-06-13 17:11:27,897 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-06-13 17:11:28,723 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-06-13 17:11:29,469 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-06-13 17:11:29,913 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-06-13 17:11:31,205 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-06-13 17:11:36,738 WARN L205 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-06-13 17:11:45,325 WARN L205 SmtUtils]: Spent 8.58 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-06-13 17:11:57,148 WARN L205 SmtUtils]: Spent 11.81 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-06-13 17:12:16,406 WARN L205 SmtUtils]: Spent 19.04 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-06-13 17:13:18,632 WARN L205 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-06-13 17:14:31,879 WARN L205 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-06-13 17:14:35,137 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-06-13 17:14:38,248 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-06-13 17:14:38,415 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-06-13 17:14:38,591 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-06-13 17:14:38,726 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-06-13 17:14:39,173 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-06-13 17:14:39,383 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-06-13 17:14:39,689 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-06-13 17:14:40,142 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-06-13 17:14:40,754 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-06-13 17:14:41,132 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-06-13 17:14:41,477 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-06-13 17:14:41,985 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-06-13 17:14:43,203 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-06-13 17:14:44,167 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-06-13 17:14:45,560 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-06-13 17:14:45,671 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-06-13 17:14:45,780 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-06-13 17:14:45,886 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-06-13 17:14:46,385 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-06-13 17:14:46,601 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-06-13 17:14:46,950 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-06-13 17:14:47,477 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-06-13 17:14:49,796 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-06-13 17:14:53,320 WARN L205 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-06-13 17:14:53,847 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-06-13 17:14:54,443 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-06-13 17:14:54,706 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-06-13 17:14:55,073 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-06-13 17:14:55,564 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-06-13 17:14:55,835 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-13 17:14:56,414 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-06-13 17:14:56,894 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-06-13 17:14:57,621 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-06-13 17:14:58,873 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-06-13 17:15:00,686 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-06-13 17:15:03,640 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-06-13 17:15:04,130 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-06-13 17:15:04,323 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-06-13 17:15:04,975 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-06-13 17:15:05,317 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-06-13 17:15:05,851 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-06-13 17:15:06,371 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-13 17:15:07,211 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-06-13 17:15:07,461 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-06-13 17:15:07,589 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-06-13 17:15:07,715 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-06-13 17:15:08,238 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-06-13 17:15:08,619 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-06-13 17:15:09,221 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-06-13 17:15:09,379 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-06-13 17:15:10,058 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-06-13 17:15:10,476 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-06-13 17:15:11,476 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-06-13 17:15:12,145 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-06-13 17:15:12,354 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 311 [2021-06-13 17:15:12,460 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 318 [2021-06-13 17:15:12,840 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-06-13 17:15:13,083 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-06-13 17:15:13,281 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-06-13 17:15:13,385 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-06-13 17:15:14,351 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-06-13 17:15:14,671 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-06-13 17:15:15,159 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-06-13 17:15:15,883 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-06-13 17:15:16,967 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-06-13 17:15:19,357 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-06-13 17:15:24,171 WARN L205 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-06-13 17:15:32,319 WARN L205 SmtUtils]: Spent 8.13 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-06-13 17:15:45,642 WARN L205 SmtUtils]: Spent 13.30 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-06-13 17:16:05,242 WARN L205 SmtUtils]: Spent 19.58 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-06-13 17:16:30,618 WARN L205 SmtUtils]: Spent 25.35 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-06-13 17:17:02,417 WARN L205 SmtUtils]: Spent 31.77 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-06-13 17:19:02,293 WARN L205 SmtUtils]: Spent 2.00 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-06-13 17:21:02,966 WARN L205 SmtUtils]: Spent 2.01 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown