/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-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 10:10:57,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 10:10:57,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 10:10:57,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 10:10:57,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 10:10:57,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 10:10:57,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 10:10:57,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 10:10:57,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 10:10:57,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 10:10:57,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 10:10:57,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 10:10:57,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 10:10:57,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 10:10:57,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 10:10:57,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 10:10:57,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 10:10:57,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 10:10:57,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 10:10:57,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 10:10:57,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 10:10:57,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 10:10:57,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 10:10:57,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 10:10:57,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 10:10:57,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 10:10:57,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 10:10:57,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 10:10:57,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 10:10:57,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 10:10:57,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 10:10:57,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 10:10:57,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 10:10:57,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 10:10:57,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 10:10:57,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 10:10:57,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 10:10:57,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 10:10:57,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 10:10:57,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 10:10:57,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 10:10:57,952 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-Sleep-NoLbe-Delay.epf [2021-03-12 10:10:57,972 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 10:10:57,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 10:10:57,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 10:10:57,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 10:10:57,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 10:10:57,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 10:10:57,974 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 10:10:57,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 10:10:57,975 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 10:10:57,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 10:10:57,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 10:10:57,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 10:10:57,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 10:10:57,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 10:10:57,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 10:10:57,977 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 10:10:57,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 10:10:57,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 10:10:57,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 10:10:57,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 10:10:57,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 10:10:57,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 10:10:57,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 10:10:57,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 10:10:57,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 10:10:57,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 10:10:57,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 10:10:57,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 10:10:57,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 10:10:57,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 10:10:57,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 10:10:57,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 10:10:57,980 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 10:10:57,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 10:10:58,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 10:10:58,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 10:10:58,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 10:10:58,338 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 10:10:58,339 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 10:10:58,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-03-12 10:10:58,341 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-03-12 10:10:58,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 10:10:58,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 10:10:58,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 10:10:58,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 10:10:58,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 10:10:58,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 10:10:58,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 10:10:58,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 10:10:58,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 10:10:58,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/1) ... [2021-03-12 10:10:58,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 10:10:58,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 10:10:58,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 10:10:58,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 10:10:58,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (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 [2021-03-12 10:10:58,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 10:10:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 10:10:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 10:10:58,562 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 10:10:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 10:10:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 10:10:58,562 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 10:10:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 10:10:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 10:10:58,563 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 10:10:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 10:10:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 10:10:58,564 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 10:10:58,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 10:10:58,906 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 10:10:58,908 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:10:58 BoogieIcfgContainer [2021-03-12 10:10:58,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 10:10:58,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 10:10:58,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 10:10:58,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 10:10:58,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:10:58" (1/2) ... [2021-03-12 10:10:58,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae76e92 and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 10:10:58, skipping insertion in model container [2021-03-12 10:10:58,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:10:58" (2/2) ... [2021-03-12 10:10:58,918 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-03-12 10:10:58,923 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 10:10:58,924 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 10:10:58,927 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 10:10:58,928 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 10:10:58,966 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-12 10:10:58,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 10:10:59,039 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 10:10:59,040 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 10:10:59,040 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 10:10:59,040 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 10:10:59,040 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 10:10:59,040 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 10:10:59,040 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 10:10:59,040 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 10:10:59,134 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:10:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:10:59,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1421528455, now seen corresponding path program 1 times [2021-03-12 10:10:59,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:10:59,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181835081] [2021-03-12 10:10:59,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:10:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:10:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:10:59,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181835081] [2021-03-12 10:10:59,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:10:59,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 10:10:59,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946524923] [2021-03-12 10:10:59,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 10:10:59,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:10:59,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 10:10:59,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 10:10:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:10:59,333 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:10:59,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:10:59,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:10:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:10:59,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 10:10:59,357 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:10:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:10:59,358 INFO L82 PathProgramCache]: Analyzing trace with hash 690038743, now seen corresponding path program 1 times [2021-03-12 10:10:59,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:10:59,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391888722] [2021-03-12 10:10:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:10:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:10:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:10:59,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391888722] [2021-03-12 10:10:59,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:10:59,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 10:10:59,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318737995] [2021-03-12 10:10:59,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 10:10:59,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:10:59,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 10:10:59,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 10:10:59,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:10:59,408 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:10:59,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2021-03-12 10:10:59,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:10:59,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:10:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:10:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:10:59,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 10:10:59,453 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:10:59,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:10:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash 2139358133, now seen corresponding path program 1 times [2021-03-12 10:10:59,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:10:59,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896376887] [2021-03-12 10:10:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:10:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:10:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:10:59,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896376887] [2021-03-12 10:10:59,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427679204] [2021-03-12 10:10:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:10:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:10:59,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-12 10:10:59,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:00,262 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-03-12 10:11:00,263 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 66 [2021-03-12 10:11:00,289 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:00,300 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:00,310 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-03-12 10:11:00,310 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 46 [2021-03-12 10:11:00,324 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:00,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:00,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-03-12 10:11:00,340 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 10:11:00,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:00,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:11:00,351 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:3 [2021-03-12 10:11:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:00,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:00,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-03-12 10:11:00,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810782133] [2021-03-12 10:11:00,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 10:11:00,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:00,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 10:11:00,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-03-12 10:11:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:00,412 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:00,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-03-12 10:11:00,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:00,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:00,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:00,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:00,921 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:00,922 INFO L82 PathProgramCache]: Analyzing trace with hash 428481043, now seen corresponding path program 2 times [2021-03-12 10:11:00,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:00,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446968207] [2021-03-12 10:11:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:01,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446968207] [2021-03-12 10:11:01,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465568070] [2021-03-12 10:11:01,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:01,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:11:01,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:11:01,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 10:11:01,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:01,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:01,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-03-12 10:11:01,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700777017] [2021-03-12 10:11:01,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 10:11:01,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:01,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 10:11:01,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 10:11:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:01,188 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:01,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-03-12 10:11:01,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:01,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:01,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:01,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:01,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:01,577 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash -59020201, now seen corresponding path program 1 times [2021-03-12 10:11:01,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:01,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528708366] [2021-03-12 10:11:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:11:01,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528708366] [2021-03-12 10:11:01,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690360201] [2021-03-12 10:11:01,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:01,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 10:11:01,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:11:01,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:01,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-03-12 10:11:01,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394808050] [2021-03-12 10:11:01,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 10:11:01,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:01,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 10:11:01,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-12 10:11:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:01,752 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:01,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:11:01,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:01,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:01,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:01,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:01,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:02,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:02,072 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:02,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1348287435, now seen corresponding path program 2 times [2021-03-12 10:11:02,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:02,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590666698] [2021-03-12 10:11:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:02,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590666698] [2021-03-12 10:11:02,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313097829] [2021-03-12 10:11:02,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:02,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:11:02,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:11:02,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-12 10:11:02,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:03,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:03,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:03,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:11:03,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-03-12 10:11:03,075 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:03,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:03,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:03,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:11:03,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-03-12 10:11:03,101 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:03,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:03,130 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:03,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-03-12 10:11:03,180 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 10:11:03,226 INFO L628 ElimStorePlain]: treesize reduction 56, result has 36.4 percent of original size [2021-03-12 10:11:03,233 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:11:03,233 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:67, output treesize:3 [2021-03-12 10:11:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:03,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:03,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2021-03-12 10:11:03,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660617303] [2021-03-12 10:11:03,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-12 10:11:03,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:03,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-12 10:11:03,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-03-12 10:11:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:03,268 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:03,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 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) [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:03,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:04,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-12 10:11:04,125 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:04,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:04,126 INFO L82 PathProgramCache]: Analyzing trace with hash 911449235, now seen corresponding path program 3 times [2021-03-12 10:11:04,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:04,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663322002] [2021-03-12 10:11:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:04,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663322002] [2021-03-12 10:11:04,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136504615] [2021-03-12 10:11:04,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:04,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-03-12 10:11:04,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:11:04,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-12 10:11:04,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:04,537 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:04,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:04,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-03-12 10:11:04,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881324669] [2021-03-12 10:11:04,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-12 10:11:04,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:04,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-12 10:11:04,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-03-12 10:11:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:04,538 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:04,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:04,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:11:05,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:05,223 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:05,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:05,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1145065769, now seen corresponding path program 4 times [2021-03-12 10:11:05,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:05,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784477309] [2021-03-12 10:11:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:11:05,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784477309] [2021-03-12 10:11:05,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896773037] [2021-03-12 10:11:05,319 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:05,359 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 10:11:05,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:11:05,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-12 10:11:05,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:11:05,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:05,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-03-12 10:11:05,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410077344] [2021-03-12 10:11:05,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-12 10:11:05,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:05,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-12 10:11:05,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-03-12 10:11:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:05,515 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:05,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:11:05,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:11:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:05,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:05,887 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:11:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:11:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash 754469045, now seen corresponding path program 5 times [2021-03-12 10:11:05,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:11:05,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604510941] [2021-03-12 10:11:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:11:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:11:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:06,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604510941] [2021-03-12 10:11:06,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685739063] [2021-03-12 10:11:06,434 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:11:06,471 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-12 10:11:06,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:11:06,473 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-03-12 10:11:06,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:11:17,083 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-03-12 10:11:18,607 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 44 [2021-03-12 10:11:18,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:11:18,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-03-12 10:11:18,740 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:18,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:18,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:11:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:11:18,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-03-12 10:11:18,765 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:18,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:18,834 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:11:18,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-03-12 10:11:19,509 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 257 [2021-03-12 10:11:19,697 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 257 [2021-03-12 10:11:20,321 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 305 [2021-03-12 10:11:21,256 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 346 [2021-03-12 10:11:21,417 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 263 [2021-03-12 10:11:21,528 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 258 [2021-03-12 10:11:21,667 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 262 [2021-03-12 10:11:21,801 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-03-12 10:11:22,155 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 300 [2021-03-12 10:11:22,911 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 346 [2021-03-12 10:11:23,098 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 258 [2021-03-12 10:11:23,191 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-12 10:11:25,619 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 263 DAG size of output: 247 [2021-03-12 10:11:25,620 INFO L628 ElimStorePlain]: treesize reduction 9280, result has 67.7 percent of original size [2021-03-12 10:11:27,259 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:11:27,259 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-03-12 10:11:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:11:27,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:11:27,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-03-12 10:11:27,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45191284] [2021-03-12 10:11:27,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-12 10:11:27,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:11:27,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-12 10:11:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-03-12 10:11:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:11:27,294 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:11:27,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 30 states have internal predecessors, (67), 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) [2021-03-12 10:11:27,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:11:27,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:11:27,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:11:27,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:11:27,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:11:27,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:27,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:11:27,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:11:27,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:12:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:12:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:36,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-12 10:12:37,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-12 10:12:37,140 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:12:37,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:12:37,140 INFO L82 PathProgramCache]: Analyzing trace with hash -127394481, now seen corresponding path program 6 times [2021-03-12 10:12:37,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:12:37,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625572494] [2021-03-12 10:12:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:12:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:12:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:12:37,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625572494] [2021-03-12 10:12:37,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074881984] [2021-03-12 10:12:37,297 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:12:37,329 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-12 10:12:37,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:12:37,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-12 10:12:37,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:12:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:12:37,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:12:37,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-03-12 10:12:37,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100116592] [2021-03-12 10:12:37,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-12 10:12:37,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:12:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-12 10:12:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-03-12 10:12:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:12:37,652 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:12:37,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:12:37,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:12:37,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:12:37,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:12:37,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:12:37,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:12:37,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:37,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:12:37,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:37,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-03-12 10:12:37,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 10:12:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-12 10:12:37,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:12:38,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:12:38,095 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:12:38,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:12:38,096 INFO L82 PathProgramCache]: Analyzing trace with hash 726661421, now seen corresponding path program 7 times [2021-03-12 10:12:38,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:12:38,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571066600] [2021-03-12 10:12:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:12:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:12:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:12:38,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571066600] [2021-03-12 10:12:38,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301323388] [2021-03-12 10:12:38,990 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 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 [2021-03-12 10:12:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:12:39,029 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 65 conjunts are in the unsatisfiable core [2021-03-12 10:12:39,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:12:40,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-03-12 10:12:40,191 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-03-12 10:12:40,205 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:12:40,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:12:40,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:12:40,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-03-12 10:12:40,225 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-03-12 10:12:40,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:12:40,420 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-03-12 10:12:40,420 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:12:40,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-03-12 10:12:40,645 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 178 [2021-03-12 10:12:40,847 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 202 [2021-03-12 10:12:41,235 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 223 [2021-03-12 10:12:41,504 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 223 [2021-03-12 10:12:41,804 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 245 [2021-03-12 10:12:42,497 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 248 [2021-03-12 10:12:43,176 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 257 [2021-03-12 10:12:43,885 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 247 [2021-03-12 10:12:44,123 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 218 [2021-03-12 10:12:44,682 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 300 [2021-03-12 10:12:44,867 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 350 [2021-03-12 10:12:45,352 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 404 [2021-03-12 10:12:46,344 WARN L205 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 458 [2021-03-12 10:12:48,505 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 615 DAG size of output: 533 [2021-03-12 10:12:53,256 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 701 DAG size of output: 614 [2021-03-12 10:13:03,248 WARN L205 SmtUtils]: Spent 9.99 s on a formula simplification. DAG size of input: 767 DAG size of output: 677 [2021-03-12 10:13:13,118 WARN L205 SmtUtils]: Spent 9.87 s on a formula simplification. DAG size of input: 767 DAG size of output: 677 [2021-03-12 10:13:23,251 WARN L205 SmtUtils]: Spent 10.13 s on a formula simplification. DAG size of input: 784 DAG size of output: 694 [2021-03-12 10:13:32,360 WARN L205 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 674 DAG size of output: 673 [2021-03-12 10:13:36,539 WARN L205 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2021-03-12 10:13:37,083 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 234 [2021-03-12 10:13:37,647 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 222 [2021-03-12 10:13:38,214 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 220 [2021-03-12 10:13:38,748 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 219 [2021-03-12 10:13:39,821 WARN L205 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 414 [2021-03-12 10:13:41,911 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 522 DAG size of output: 479 [2021-03-12 10:13:46,526 WARN L205 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 581 DAG size of output: 537 [2021-03-12 10:13:56,549 WARN L205 SmtUtils]: Spent 10.02 s on a formula simplification. DAG size of input: 592 DAG size of output: 548 [2021-03-12 10:13:58,441 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 534 DAG size of output: 534 [2021-03-12 10:13:59,231 WARN L205 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 463 [2021-03-12 10:14:00,386 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 418 DAG size of output: 454 [2021-03-12 10:14:01,562 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 413 DAG size of output: 444 [2021-03-12 10:14:01,918 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 405 [2021-03-12 10:14:02,422 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 331 [2021-03-12 10:14:02,580 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 351 [2021-03-12 10:14:03,474 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 439 DAG size of output: 417 [2021-03-12 10:14:03,967 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 584 [2021-03-12 10:14:04,933 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 691 [2021-03-12 10:14:06,951 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 936 DAG size of output: 878 [2021-03-12 10:14:11,846 WARN L205 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 1134 DAG size of output: 1067 [2021-03-12 10:14:22,233 WARN L205 SmtUtils]: Spent 10.38 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1222 [2021-03-12 10:14:22,703 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 264 [2021-03-12 10:14:23,124 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 313 [2021-03-12 10:14:23,709 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 367 [2021-03-12 10:14:24,987 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 415 DAG size of output: 376 [2021-03-12 10:14:48,596 WARN L205 SmtUtils]: Spent 23.61 s on a formula simplification. DAG size of input: 1504 DAG size of output: 1417 [2021-03-12 10:14:49,241 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 233 [2021-03-12 10:14:49,850 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 221 [2021-03-12 10:14:50,095 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 201 [2021-03-12 10:14:50,370 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 204 [2021-03-12 10:14:50,645 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 199 [2021-03-12 10:14:51,230 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 354 [2021-03-12 10:14:52,307 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 452 DAG size of output: 412 [2021-03-12 10:14:54,723 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 527 DAG size of output: 467 [2021-03-12 10:14:59,861 WARN L205 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 584 DAG size of output: 523 [2021-03-12 10:15:11,247 WARN L205 SmtUtils]: Spent 11.38 s on a formula simplification. DAG size of input: 598 DAG size of output: 537 [2021-03-12 10:16:15,139 WARN L205 SmtUtils]: Spent 1.06 m on a formula simplification. DAG size of input: 1872 DAG size of output: 1747 [2021-03-12 10:18:36,960 WARN L205 SmtUtils]: Spent 2.36 m on a formula simplification. DAG size of input: 2223 DAG size of output: 2078 [2021-03-12 10:18:37,200 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 212 [2021-03-12 10:18:37,469 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 184 [2021-03-12 10:18:37,771 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 215 [2021-03-12 10:18:38,436 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 346 [2021-03-12 10:18:38,940 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 394 [2021-03-12 10:18:40,008 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-03-12 10:18:42,578 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 549 DAG size of output: 505 [2021-03-12 10:18:48,126 WARN L205 SmtUtils]: Spent 5.54 s on a formula simplification. DAG size of input: 571 DAG size of output: 526 [2021-03-12 10:19:00,108 WARN L205 SmtUtils]: Spent 11.98 s on a formula simplification. DAG size of input: 661 DAG size of output: 602 [2021-03-12 10:24:04,486 WARN L205 SmtUtils]: Spent 5.07 m on a formula simplification. DAG size of input: 2580 DAG size of output: 2421 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown