/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 21:31:26,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 21:31:26,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 21:31:26,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 21:31:26,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-06 21:31:26,999 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 21:31:26,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 21:31:26,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 21:31:26,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 21:31:27,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 21:31:27,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 21:31:27,002 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 21:31:27,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 21:31:27,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 21:31:27,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 21:31:27,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 21:31:27,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 21:31:27,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 21:31:27,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 21:31:27,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 21:31:27,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 21:31:27,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 21:31:27,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 21:31:27,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 21:31:27,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 21:31:27,007 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 21:31:27,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 21:31:27,007 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 21:31:27,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 21:31:27,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 21:31:27,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 21:31:27,301 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 21:31:27,302 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 21:31:27,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2021-06-06 21:31:27,302 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2021-06-06 21:31:27,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 21:31:27,329 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 21:31:27,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 21:31:27,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 21:31:27,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 21:31:27,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 21:31:27,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 21:31:27,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 21:31:27,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 21:31:27,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... [2021-06-06 21:31:27,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 21:31:27,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 21:31:27,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 21:31:27,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 21:31:27,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 21:31:27,433 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 21:31:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 21:31:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 21:31:27,434 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 21:31:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 21:31:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 21:31:27,434 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 21:31:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 21:31:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 21:31:27,436 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 21:31:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 21:31:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 21:31:27,436 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-06 21:31:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-06 21:31:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-06 21:31:27,438 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 21:31:27,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 21:31:27,715 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-06-06 21:31:27,716 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-06 21:31:27,716 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-06 21:31:27,717 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-06-06 21:31:27,718 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 09:31:27 BoogieIcfgContainer [2021-06-06 21:31:27,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 21:31:27,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 21:31:27,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 21:31:27,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 21:31:27,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 09:31:27" (1/2) ... [2021-06-06 21:31:27,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c170c4 and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 09:31:27, skipping insertion in model container [2021-06-06 21:31:27,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 09:31:27" (2/2) ... [2021-06-06 21:31:27,724 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2021-06-06 21:31:27,741 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 21:31:27,741 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 21:31:27,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 21:31:27,742 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 21:31:27,825 INFO L149 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-06-06 21:31:27,842 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 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 [2021-06-06 21:31:27,887 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 21:31:27,887 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 21:31:27,887 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 21:31:27,887 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 21:31:27,888 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 21:31:27,888 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 21:31:27,888 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 21:31:27,888 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1======== [2021-06-06 21:31:28,055 INFO L301 ceAbstractionStarter]: Result for error location thread1 was SAFE (1/3) [2021-06-06 21:31:28,056 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 21:31:28,073 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 21:31:28,073 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 21:31:28,073 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 21:31:28,073 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 21:31:28,073 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 21:31:28,073 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 21:31:28,073 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 21:31:28,074 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1Thread1of1ForFork0======== [2021-06-06 21:31:28,156 INFO L301 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (2/3) [2021-06-06 21:31:28,157 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-06 21:31:28,167 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 21:31:28,168 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 21:31:28,168 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 21:31:28,168 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 21:31:28,168 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 21:31:28,168 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 21:31:28,168 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 21:31:28,168 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 21:31:28,212 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:28,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:28,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1969607016, now seen corresponding path program 1 times [2021-06-06 21:31:28,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:28,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91722763] [2021-06-06 21:31:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 21:31:28,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:28,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91722763] [2021-06-06 21:31:28,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91722763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 21:31:28,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 21:31:28,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 21:31:28,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673769990] [2021-06-06 21:31:28,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 21:31:28,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:28,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 21:31:28,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 21:31:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,376 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:28,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-06-06 21:31:28,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:28,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 21:31:28,404 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:28,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1947655884, now seen corresponding path program 1 times [2021-06-06 21:31:28,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:28,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521080970] [2021-06-06 21:31:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:28,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:28,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521080970] [2021-06-06 21:31:28,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521080970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 21:31:28,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 21:31:28,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 21:31:28,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572183913] [2021-06-06 21:31:28,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 21:31:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:28,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 21:31:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 21:31:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:28,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-06-06 21:31:28,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:28,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:28,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 21:31:28,533 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:28,534 INFO L82 PathProgramCache]: Analyzing trace with hash -374950382, now seen corresponding path program 1 times [2021-06-06 21:31:28,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:28,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454206498] [2021-06-06 21:31:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:28,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:28,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454206498] [2021-06-06 21:31:28,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454206498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 21:31:28,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 21:31:28,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-06 21:31:28,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376217095] [2021-06-06 21:31:28,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 21:31:28,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:28,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 21:31:28,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-06 21:31:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,610 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:28,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 21:31:28,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:28,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:28,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:28,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-06 21:31:28,682 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:28,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1041334764, now seen corresponding path program 2 times [2021-06-06 21:31:28,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:28,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871703463] [2021-06-06 21:31:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:28,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:28,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871703463] [2021-06-06 21:31:28,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871703463] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:28,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852743098] [2021-06-06 21:31:28,851 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 [2021-06-06 21:31:28,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 21:31:28,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:28,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-06 21:31:28,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:29,212 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:29,212 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-06-06 21:31:29,215 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 21:31:29,229 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:29,245 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:29,246 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:38 [2021-06-06 21:31:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:29,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852743098] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:29,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:29,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2021-06-06 21:31:29,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833462880] [2021-06-06 21:31:29,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 21:31:29,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 21:31:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-06 21:31:29,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:29,433 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:29,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 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) [2021-06-06 21:31:29,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:29,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:29,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:29,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:29,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 21:31:30,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:30,041 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:30,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:30,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1146845773, now seen corresponding path program 3 times [2021-06-06 21:31:30,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:30,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497421034] [2021-06-06 21:31:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:30,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:30,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497421034] [2021-06-06 21:31:30,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497421034] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:30,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924277974] [2021-06-06 21:31:30,091 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 [2021-06-06 21:31:30,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-06 21:31:30,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:30,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-06 21:31:30,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:30,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924277974] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:30,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:30,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-06 21:31:30,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058083502] [2021-06-06 21:31:30,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 21:31:30,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:30,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 21:31:30,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-06 21:31:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:30,240 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:30,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2021-06-06 21:31:30,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:30,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:30,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:30,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 21:31:30,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:30,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:30,793 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:30,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:30,793 INFO L82 PathProgramCache]: Analyzing trace with hash -2094027300, now seen corresponding path program 1 times [2021-06-06 21:31:30,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:30,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972444533] [2021-06-06 21:31:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:30,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:30,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972444533] [2021-06-06 21:31:30,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972444533] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:30,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691372610] [2021-06-06 21:31:30,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-06 21:31:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:30,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-06 21:31:30,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:30,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691372610] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:30,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:30,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-06 21:31:30,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381000576] [2021-06-06 21:31:30,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 21:31:30,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:30,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 21:31:30,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-06 21:31:30,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:30,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:30,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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) [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:30,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:31,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:31,261 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 323717448, now seen corresponding path program 1 times [2021-06-06 21:31:31,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:31,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079840589] [2021-06-06 21:31:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:31,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:31,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079840589] [2021-06-06 21:31:31,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079840589] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:31,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205338543] [2021-06-06 21:31:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-06 21:31:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:31,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-06 21:31:31,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:31,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-06-06 21:31:31,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 21:31:31,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:31,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:31,722 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:7 [2021-06-06 21:31:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:31,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205338543] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:31,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:31,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-06-06 21:31:31,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962333317] [2021-06-06 21:31:31,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-06 21:31:31,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:31,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-06 21:31:31,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-06-06 21:31:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:31,799 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:31,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 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) [2021-06-06 21:31:31,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:31,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 21:31:32,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:32,701 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:32,701 INFO L82 PathProgramCache]: Analyzing trace with hash 703304679, now seen corresponding path program 2 times [2021-06-06 21:31:32,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:32,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782866428] [2021-06-06 21:31:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:32,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:32,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782866428] [2021-06-06 21:31:32,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782866428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:32,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842444223] [2021-06-06 21:31:32,760 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 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 [2021-06-06 21:31:32,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 21:31:32,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:32,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-06 21:31:32,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:32,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842444223] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:32,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:32,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-06-06 21:31:32,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531164082] [2021-06-06 21:31:32,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 21:31:32,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:32,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 21:31:32,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-06-06 21:31:32,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:32,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:32,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:32,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 21:31:32,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:33,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 21:31:33,505 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:33,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1819482794, now seen corresponding path program 3 times [2021-06-06 21:31:33,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:33,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748335761] [2021-06-06 21:31:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:33,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:33,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748335761] [2021-06-06 21:31:33,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748335761] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:33,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692761683] [2021-06-06 21:31:33,553 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 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 [2021-06-06 21:31:33,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 21:31:33,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:33,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-06 21:31:33,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:33,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692761683] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:33,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:33,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-06-06 21:31:33,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792718846] [2021-06-06 21:31:33,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 21:31:33,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:33,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 21:31:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-06-06 21:31:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:33,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:33,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:33,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:33,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:33,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:33,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:34,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:34,069 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash -680241975, now seen corresponding path program 4 times [2021-06-06 21:31:34,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:34,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533270593] [2021-06-06 21:31:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:34,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:34,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533270593] [2021-06-06 21:31:34,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533270593] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:34,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464218854] [2021-06-06 21:31:34,467 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 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 [2021-06-06 21:31:34,506 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 21:31:34,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:34,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-06 21:31:34,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:34,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-06-06 21:31:34,834 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 21:31:34,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:34,835 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:34,836 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:7 [2021-06-06 21:31:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:34,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464218854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:34,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:34,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 31 [2021-06-06 21:31:34,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279028072] [2021-06-06 21:31:34,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 21:31:34,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:34,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 21:31:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2021-06-06 21:31:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:34,884 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:34,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 31 states have internal predecessors, (49), 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) [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:34,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-06 21:31:36,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:36,554 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:36,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2029026520, now seen corresponding path program 5 times [2021-06-06 21:31:36,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:36,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419174304] [2021-06-06 21:31:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:36,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:36,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419174304] [2021-06-06 21:31:36,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419174304] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:36,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591525242] [2021-06-06 21:31:36,628 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 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 [2021-06-06 21:31:36,662 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-06 21:31:36,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:36,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 21:31:36,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:36,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591525242] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:36,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:36,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-06-06 21:31:36,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843861700] [2021-06-06 21:31:36,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-06 21:31:36,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:36,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-06 21:31:36,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-06-06 21:31:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:36,792 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:36,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 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) [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:36,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 21:31:36,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:36,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:36,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-06 21:31:36,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:37,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-06 21:31:37,711 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:37,711 INFO L82 PathProgramCache]: Analyzing trace with hash -827784438, now seen corresponding path program 6 times [2021-06-06 21:31:37,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:37,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68097691] [2021-06-06 21:31:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:38,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:38,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68097691] [2021-06-06 21:31:38,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68097691] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:38,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882944273] [2021-06-06 21:31:38,191 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:38,232 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 21:31:38,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:38,233 WARN L261 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-06 21:31:38,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:38,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 21:31:38,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-06-06 21:31:38,874 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 21:31:38,879 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:38,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:38,881 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:5 [2021-06-06 21:31:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:38,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882944273] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:38,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:38,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 40 [2021-06-06 21:31:38,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947101012] [2021-06-06 21:31:38,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-06 21:31:38,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:38,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-06 21:31:38,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2021-06-06 21:31:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:38,946 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:38,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.425) internal successors, (57), 40 states have internal predecessors, (57), 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) [2021-06-06 21:31:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:38,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 21:31:41,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-06 21:31:41,287 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2083412695, now seen corresponding path program 7 times [2021-06-06 21:31:41,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:41,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602556516] [2021-06-06 21:31:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:41,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:41,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602556516] [2021-06-06 21:31:41,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602556516] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:41,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491405409] [2021-06-06 21:31:41,378 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:41,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-06 21:31:41,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:41,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491405409] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:41,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:41,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-06-06 21:31:41,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827074196] [2021-06-06 21:31:41,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-06 21:31:41,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:41,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-06 21:31:41,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2021-06-06 21:31:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:41,587 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:41,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 21:31:41,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:42,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-06 21:31:42,717 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:42,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1627677707, now seen corresponding path program 8 times [2021-06-06 21:31:42,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:42,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304398599] [2021-06-06 21:31:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:43,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:43,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304398599] [2021-06-06 21:31:43,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304398599] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:43,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520200407] [2021-06-06 21:31:43,345 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:43,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 21:31:43,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:43,378 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 70 conjunts are in the unsatisfiable core [2021-06-06 21:31:43,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:44,063 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:44,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 59 [2021-06-06 21:31:44,071 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 21:31:44,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:44,077 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:44,078 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:17 [2021-06-06 21:31:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:44,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520200407] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:44,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:44,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 48 [2021-06-06 21:31:44,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441966040] [2021-06-06 21:31:44,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-06-06 21:31:44,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:44,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-06-06 21:31:44,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1948, Unknown=0, NotChecked=0, Total=2256 [2021-06-06 21:31:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:44,189 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:44,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 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) [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:44,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-06 21:31:47,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:47,269 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:47,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:47,269 INFO L82 PathProgramCache]: Analyzing trace with hash -321336854, now seen corresponding path program 9 times [2021-06-06 21:31:47,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:47,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558076141] [2021-06-06 21:31:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:47,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:47,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558076141] [2021-06-06 21:31:47,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558076141] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:47,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484449397] [2021-06-06 21:31:47,359 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:47,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-06 21:31:47,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:47,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-06 21:31:47,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:47,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484449397] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:47,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:47,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-06-06 21:31:47,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742677493] [2021-06-06 21:31:47,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-06 21:31:47,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:47,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-06 21:31:47,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2021-06-06 21:31:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:47,607 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:47,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-06 21:31:47,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-06-06 21:31:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:49,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-06 21:31:49,624 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:49,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1659717580, now seen corresponding path program 10 times [2021-06-06 21:31:49,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:49,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569556658] [2021-06-06 21:31:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:50,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:50,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569556658] [2021-06-06 21:31:50,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569556658] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:50,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670702851] [2021-06-06 21:31:50,425 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:50,475 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 21:31:50,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:50,477 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-06 21:31:50,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:51,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2021-06-06 21:31:51,377 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 21:31:51,379 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:31:51,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 21:31:51,379 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:7 [2021-06-06 21:31:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:51,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670702851] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:51,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:51,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 55 [2021-06-06 21:31:51,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624630684] [2021-06-06 21:31:51,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-06-06 21:31:51,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:51,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-06-06 21:31:51,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2681, Unknown=0, NotChecked=0, Total=2970 [2021-06-06 21:31:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:51,444 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:51,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 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) [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:51,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:51,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-06-06 21:31:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-06 21:31:55,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:55,700 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:55,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:55,701 INFO L82 PathProgramCache]: Analyzing trace with hash 404210027, now seen corresponding path program 11 times [2021-06-06 21:31:55,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:55,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161893415] [2021-06-06 21:31:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:55,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:55,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161893415] [2021-06-06 21:31:55,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161893415] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:55,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966459437] [2021-06-06 21:31:55,809 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:55,862 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-06 21:31:55,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:55,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 21:31:55,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:31:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:56,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966459437] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:56,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 21:31:56,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 21:31:56,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650813752] [2021-06-06 21:31:56,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 21:31:56,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 21:31:56,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 21:31:56,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2021-06-06 21:31:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:56,151 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 21:31:56,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 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) [2021-06-06 21:31:56,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:56,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:56,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:56,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:56,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-06 21:31:56,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 21:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 21:31:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 21:31:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 21:31:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-06 21:31:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-06 21:31:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-06-06 21:31:58,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-06 21:31:58,380 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-06 21:31:58,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 21:31:58,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1377205837, now seen corresponding path program 12 times [2021-06-06 21:31:58,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 21:31:58,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176411514] [2021-06-06 21:31:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 21:31:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 21:31:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 25 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 21:31:59,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 21:31:59,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176411514] [2021-06-06 21:31:59,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176411514] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 21:31:59,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754795068] [2021-06-06 21:31:59,341 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 21:31:59,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-06 21:31:59,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 21:31:59,382 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 93 conjunts are in the unsatisfiable core [2021-06-06 21:31:59,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 21:32:00,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:00,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 21:32:01,098 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-06 21:32:01,099 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 21:32:01,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 63 treesize of output 361 [2021-06-06 21:32:01,418 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 444 [2021-06-06 21:32:01,661 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 459 [2021-06-06 21:32:02,655 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 2040 DAG size of output: 1053 [2021-06-06 21:32:03,352 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 2065 DAG size of output: 1073 [2021-06-06 21:32:04,520 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1003 DAG size of output: 1058 [2021-06-06 21:32:05,068 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 997 DAG size of output: 997 [2021-06-06 21:32:05,464 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 660 DAG size of output: 751 [2021-06-06 21:32:05,849 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 694 [2021-06-06 21:32:06,220 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 747 [2021-06-06 21:32:06,613 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 649 DAG size of output: 715 [2021-06-06 21:32:06,757 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 359 [2021-06-06 21:32:07,272 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 425 [2021-06-06 21:32:07,495 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 737 DAG size of output: 563 [2021-06-06 21:32:08,035 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 411 [2021-06-06 21:32:08,653 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 1829 DAG size of output: 1331 [2021-06-06 21:32:09,583 WARN L205 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 2136 DAG size of output: 1592 [2021-06-06 21:32:10,775 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 2345 DAG size of output: 1770 [2021-06-06 21:32:12,338 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 2622 DAG size of output: 2032 [2021-06-06 21:32:12,802 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 566 [2021-06-06 21:32:13,284 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 591 [2021-06-06 21:32:13,459 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 518 [2021-06-06 21:32:13,927 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 323 [2021-06-06 21:32:14,078 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 379 [2021-06-06 21:32:14,229 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 442 [2021-06-06 21:32:14,542 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 480 [2021-06-06 21:32:14,873 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 504 [2021-06-06 21:32:15,137 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 487 [2021-06-06 21:32:15,650 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 386 [2021-06-06 21:32:16,030 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 680 [2021-06-06 21:32:16,347 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 836 [2021-06-06 21:32:16,857 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 1310 DAG size of output: 970 [2021-06-06 21:32:17,581 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 1458 DAG size of output: 1106 [2021-06-06 21:32:18,595 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1686 DAG size of output: 1322 [2021-06-06 21:32:20,059 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1991 DAG size of output: 1554 [2021-06-06 21:32:21,997 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 2240 DAG size of output: 1761 [2021-06-06 21:32:24,461 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 2492 DAG size of output: 1992 [2021-06-06 21:32:29,037 WARN L205 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 4584 DAG size of output: 3582 [2021-06-06 21:32:34,878 WARN L205 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 5177 DAG size of output: 4130 [2021-06-06 21:32:40,802 WARN L205 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 5177 DAG size of output: 4130 [2021-06-06 21:32:46,990 WARN L205 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 5180 DAG size of output: 4133 [2021-06-06 21:32:52,756 WARN L205 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 3815 DAG size of output: 3805 [2021-06-06 21:32:57,297 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 3268 DAG size of output: 3269 [2021-06-06 21:32:58,871 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1901 DAG size of output: 1901 [2021-06-06 21:32:59,193 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 666 [2021-06-06 21:32:59,320 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 578 [2021-06-06 21:32:59,437 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 335 [2021-06-06 21:32:59,750 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 265 [2021-06-06 21:32:59,866 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 305 [2021-06-06 21:33:00,580 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 765 DAG size of output: 641 [2021-06-06 21:33:00,796 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 769 DAG size of output: 643 [2021-06-06 21:33:01,093 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 890 DAG size of output: 764 [2021-06-06 21:33:01,585 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 1146 DAG size of output: 897 [2021-06-06 21:33:02,232 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 1154 DAG size of output: 905 [2021-06-06 21:33:02,847 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 594 [2021-06-06 21:33:03,007 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 640 [2021-06-06 21:33:03,690 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 721 DAG size of output: 634 [2021-06-06 21:33:04,103 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 1297 DAG size of output: 1142 [2021-06-06 21:33:05,280 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 2217 DAG size of output: 1836 [2021-06-06 21:33:06,855 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 2475 DAG size of output: 2097 [2021-06-06 21:33:07,171 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 662 [2021-06-06 21:33:07,499 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 654 [2021-06-06 21:33:07,625 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 565 [2021-06-06 21:33:07,738 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 311 [2021-06-06 21:33:08,336 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 698 DAG size of output: 622 [2021-06-06 21:33:08,849 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 937 DAG size of output: 838 [2021-06-06 21:33:09,204 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 1049 DAG size of output: 947 [2021-06-06 21:33:09,983 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 939 DAG size of output: 875 [2021-06-06 21:33:10,591 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 1779 DAG size of output: 1609 [2021-06-06 21:33:11,555 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 2167 DAG size of output: 2002 [2021-06-06 21:33:12,829 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 2403 DAG size of output: 2217 [2021-06-06 21:33:13,666 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 566 [2021-06-06 21:33:13,794 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 541 [2021-06-06 21:33:14,602 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1007 DAG size of output: 850 [2021-06-06 21:33:15,458 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 862 DAG size of output: 782 [2021-06-06 21:33:15,797 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 1424 DAG size of output: 1222 [2021-06-06 21:33:16,378 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 1679 DAG size of output: 1468 [2021-06-06 21:33:16,490 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 528 [2021-06-06 21:33:17,079 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-06-06 21:33:17,493 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 901 DAG size of output: 872 [2021-06-06 21:33:17,785 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 1006 DAG size of output: 974 [2021-06-06 21:33:18,680 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 994 DAG size of output: 973 [2021-06-06 21:33:19,269 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 1773 DAG size of output: 1711 [2021-06-06 21:33:19,574 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 520 DAG size of output: 584 [2021-06-06 21:33:19,691 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 269 [2021-06-06 21:33:20,296 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 482 [2021-06-06 21:33:20,589 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 574 [2021-06-06 21:33:20,870 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 817 DAG size of output: 664 [2021-06-06 21:33:21,921 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 1734 DAG size of output: 1421 [2021-06-06 21:33:29,487 WARN L205 SmtUtils]: Spent 7.55 s on a formula simplification. DAG size of input: 7958 DAG size of output: 6827 [2021-06-06 21:33:34,398 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 1774 DAG size of output: 2322 [2021-06-06 21:33:34,810 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 465 DAG size of output: 514 [2021-06-06 21:33:35,182 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 537 [2021-06-06 21:33:35,581 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 522 [2021-06-06 21:33:35,952 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 455 DAG size of output: 501 [2021-06-06 21:33:37,013 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 1400 DAG size of output: 1099 [2021-06-06 21:33:37,798 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 1653 DAG size of output: 1369 [2021-06-06 21:33:38,886 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1835 DAG size of output: 1550 [2021-06-06 21:33:40,362 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 2106 DAG size of output: 1761 [2021-06-06 21:33:40,736 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 552 [2021-06-06 21:33:41,123 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 465 DAG size of output: 514 [2021-06-06 21:33:41,522 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 519 [2021-06-06 21:33:41,673 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 456 [2021-06-06 21:33:41,927 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 341 [2021-06-06 21:33:42,091 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 352 [2021-06-06 21:33:42,586 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 987 DAG size of output: 918 [2021-06-06 21:33:42,924 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 1127 DAG size of output: 1068 [2021-06-06 21:33:43,768 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 1378 DAG size of output: 1287 [2021-06-06 21:33:44,179 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 534 [2021-06-06 21:33:44,967 WARN L205 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 1700 DAG size of output: 1582 [2021-06-06 21:33:46,075 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 1969 DAG size of output: 1844 [2021-06-06 21:33:47,646 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 2222 DAG size of output: 2111 [2021-06-06 21:33:49,686 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 2389 DAG size of output: 2269 [2021-06-06 21:33:49,974 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 461 [2021-06-06 21:33:50,239 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 445 [2021-06-06 21:33:50,988 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 870 [2021-06-06 21:33:51,498 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 1403 DAG size of output: 1109 [2021-06-06 21:33:51,698 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 418 [2021-06-06 21:33:52,706 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 715 DAG size of output: 712 [2021-06-06 21:33:52,965 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 833 DAG size of output: 823 [2021-06-06 21:33:53,304 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 1025 [2021-06-06 21:33:53,805 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 1191 DAG size of output: 1129 [2021-06-06 21:33:53,911 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 327 [2021-06-06 21:33:54,145 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 586 DAG size of output: 508 [2021-06-06 21:33:54,749 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 399 [2021-06-06 21:33:55,314 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 755 [2021-06-06 21:33:55,472 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 409 [2021-06-06 21:33:56,477 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 883 DAG size of output: 698 [2021-06-06 21:33:56,884 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 434 [2021-06-06 21:33:57,020 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 496 [2021-06-06 21:33:57,385 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 1236 DAG size of output: 1050 [2021-06-06 21:33:58,213 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 1515 DAG size of output: 1283 [2021-06-06 21:34:09,750 WARN L205 SmtUtils]: Spent 11.52 s on a formula simplification. DAG size of input: 8501 DAG size of output: 7147 [2021-06-06 21:34:31,296 WARN L205 SmtUtils]: Spent 21.50 s on a formula simplification. DAG size of input: 15268 DAG size of output: 12863 [2021-06-06 21:34:32,231 WARN L205 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 907 DAG size of output: 1033 [2021-06-06 21:34:33,149 WARN L205 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 903 DAG size of output: 982 [2021-06-06 21:34:34,029 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 1042 [2021-06-06 21:34:34,942 WARN L205 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 896 DAG size of output: 1004 [2021-06-06 21:34:35,109 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 457 [2021-06-06 21:34:35,480 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 397 [2021-06-06 21:34:36,515 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 668 [2021-06-06 21:34:36,834 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 1187 DAG size of output: 872 [2021-06-06 21:34:37,327 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 1084 [2021-06-06 21:34:37,734 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 354 [2021-06-06 21:34:37,845 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 364 [2021-06-06 21:34:38,344 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 613 [2021-06-06 21:34:38,573 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 802 DAG size of output: 697 [2021-06-06 21:34:38,930 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 950 DAG size of output: 841 [2021-06-06 21:34:40,768 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 3262 DAG size of output: 2594 [2021-06-06 21:34:43,403 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 3781 DAG size of output: 3034 [2021-06-06 21:34:46,894 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 4419 DAG size of output: 3557 [2021-06-06 21:34:51,437 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 4735 DAG size of output: 3844 [2021-06-06 21:35:23,486 WARN L205 SmtUtils]: Spent 32.01 s on a formula simplification. DAG size of input: 18932 DAG size of output: 15769 [2021-06-06 21:35:54,835 WARN L205 SmtUtils]: Spent 31.27 s on a formula simplification. DAG size of input: 18932 DAG size of output: 15769 [2021-06-06 21:36:26,308 WARN L205 SmtUtils]: Spent 31.33 s on a formula simplification. DAG size of input: 18935 DAG size of output: 15772 [2021-06-06 21:36:55,523 WARN L205 SmtUtils]: Spent 29.10 s on a formula simplification. DAG size of input: 14973 DAG size of output: 14916 [2021-06-06 21:36:55,794 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 411 [2021-06-06 21:36:56,040 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 409 [2021-06-06 21:36:56,639 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 443 [2021-06-06 21:36:57,068 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 553 [2021-06-06 21:36:57,318 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 857 DAG size of output: 671 [2021-06-06 21:36:57,726 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 760 [2021-06-06 21:36:58,298 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 766 [2021-06-06 21:37:00,538 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 662 [2021-06-06 21:37:03,151 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 466 [2021-06-06 21:37:03,602 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 337 [2021-06-06 21:37:03,877 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 629 [2021-06-06 21:37:04,370 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1028 [2021-06-06 21:37:04,645 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 390 [2021-06-06 21:37:05,225 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 725 DAG size of output: 623 [2021-06-06 21:37:05,702 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 960 DAG size of output: 827 [2021-06-06 21:37:06,137 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 1154 DAG size of output: 1051 [2021-06-06 21:37:07,407 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 2372 DAG size of output: 1801 [2021-06-06 21:37:07,566 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 307 [2021-06-06 21:37:07,868 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 689 DAG size of output: 515 [2021-06-06 21:39:02,375 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 7130 DAG size of output: 6445 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown