/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:17:02,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:17:02,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:17:02,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 21:17:02,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 21:17:02,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 21:17:02,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 21:17:02,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 21:17:02,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 21:17:02,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 21:17:02,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 21:17:02,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 21:17:02,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 21:17:02,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 21:17:02,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 21:17:02,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 21:17:02,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 21:17:02,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 21:17:02,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 21:17:02,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 21:17:02,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 21:17:02,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 21:17:02,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 21:17:02,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 21:17:02,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 21:17:02,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 21:17:02,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 21:17:02,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 21:17:02,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 21:17:02,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 21:17:02,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 21:17:02,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 21:17:02,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 21:17:02,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 21:17:02,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 21:17:02,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 21:17:02,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 21:17:02,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 21:17:02,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 21:17:02,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 21:17:02,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 21:17:02,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 21:17:02,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:17:02,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:17:02,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:17:02,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:17:02,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:17:02,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:17:02,202 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:17:02,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:17:02,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:17:02,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:17:02,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:17:02,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:17:02,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:17:02,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:17:02,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:17:02,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:17:02,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:17:02,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:17:02,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:17:02,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:17:02,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:17:02,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:17:02,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:17:02,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:17:02,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:17:02,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:17:02,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:17:02,229 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:17:02,229 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:17:02,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:17:02,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:17:02,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:17:02,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:17:02,521 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:17:02,523 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:17:02,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-06-16 21:17:02,524 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-06-16 21:17:02,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:17:02,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:17:02,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:17:02,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:17:02,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:17:02,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:17:02,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:17:02,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:17:02,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:17:02,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... [2021-06-16 21:17:02,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:17:02,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:17:02,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:17:02,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:17:02,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:17:02,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:17:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:17:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:17:02,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:17:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:17:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:17:02,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:17:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:17:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:17:02,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 21:17:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 21:17:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 21:17:02,675 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:17:02,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:17:02,867 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:17:02,868 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:17:02 BoogieIcfgContainer [2021-06-16 21:17:02,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:17:02,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:17:02,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:17:02,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:17:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:17:02" (1/2) ... [2021-06-16 21:17:02,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462446dc and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:17:02, skipping insertion in model container [2021-06-16 21:17:02,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:17:02" (2/2) ... [2021-06-16 21:17:02,875 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-06-16 21:17:02,880 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:17:02,880 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:17:02,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:17:02,881 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:17:02,935 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-16 21:17:02,965 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-16 21:17:03,104 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:17:03,105 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:17:03,105 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:17:03,105 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:17:03,105 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:17:03,105 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:17:03,105 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:17:03,105 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:17:03,242 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -837472812, now seen corresponding path program 1 times [2021-06-16 21:17:03,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:03,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778240242] [2021-06-16 21:17:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:03,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:03,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778240242] [2021-06-16 21:17:03,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778240242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:17:03,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:17:03,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:17:03,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366016938] [2021-06-16 21:17:03,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:17:03,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:03,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:17:03,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:17:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:03,437 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:03,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:03,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:03,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:17:03,473 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:03,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:03,474 INFO L82 PathProgramCache]: Analyzing trace with hash 482321657, now seen corresponding path program 1 times [2021-06-16 21:17:03,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:03,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789203066] [2021-06-16 21:17:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:17:03,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:03,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789203066] [2021-06-16 21:17:03,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789203066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:17:03,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:17:03,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 21:17:03,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432679545] [2021-06-16 21:17:03,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 21:17:03,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:03,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 21:17:03,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 21:17:03,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:03,537 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:03,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:03,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:03,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:03,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:03,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 21:17:03,586 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:03,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:03,587 INFO L82 PathProgramCache]: Analyzing trace with hash -850517330, now seen corresponding path program 1 times [2021-06-16 21:17:03,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:03,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087474043] [2021-06-16 21:17:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:04,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:04,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087474043] [2021-06-16 21:17:04,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087474043] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:04,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472017473] [2021-06-16 21:17:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:04,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-16 21:17:04,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:04,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-16 21:17:04,400 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:04,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:04,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-16 21:17:04,420 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:04,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:04,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-16 21:17:04,436 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:17:04,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:04,443 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:17:04,443 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-16 21:17:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:04,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472017473] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:04,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:04,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-06-16 21:17:04,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621002647] [2021-06-16 21:17:04,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 21:17:04,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:04,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 21:17:04,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-16 21:17:04,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:04,490 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:04,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:04,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:04,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:04,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:04,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:04,921 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:04,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1622545901, now seen corresponding path program 2 times [2021-06-16 21:17:04,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:04,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137581692] [2021-06-16 21:17:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:05,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:05,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137581692] [2021-06-16 21:17:05,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137581692] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:05,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524892193] [2021-06-16 21:17:05,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:05,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:17:05,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:05,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:17:05,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:05,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524892193] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:05,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:05,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-16 21:17:05,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900192571] [2021-06-16 21:17:05,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:17:05,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:05,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:17:05,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:17:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:05,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:05,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:05,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:05,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:05,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:05,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:05,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:05,656 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:05,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1276293331, now seen corresponding path program 1 times [2021-06-16 21:17:05,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:05,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071710069] [2021-06-16 21:17:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:17:05,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:05,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071710069] [2021-06-16 21:17:05,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071710069] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:05,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919576216] [2021-06-16 21:17:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:05,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:17:05,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:17:05,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919576216] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:05,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:05,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:17:05,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57458032] [2021-06-16 21:17:05,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 21:17:05,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:05,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 21:17:05,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-16 21:17:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:05,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:05,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:05,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:06,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:06,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:06,237 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash -60790002, now seen corresponding path program 2 times [2021-06-16 21:17:06,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:06,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112665206] [2021-06-16 21:17:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:06,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:06,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112665206] [2021-06-16 21:17:06,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112665206] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:06,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094593126] [2021-06-16 21:17:06,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:06,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:17:06,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:06,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-16 21:17:06,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:07,972 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-06-16 21:17:08,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:08,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:08,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:08,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-06-16 21:17:08,047 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:08,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:08,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:08,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:08,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-06-16 21:17:08,071 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:08,081 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:08,099 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:08,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-06-16 21:17:08,127 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:17:08,172 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-06-16 21:17:08,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:17:08,178 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-06-16 21:17:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:08,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094593126] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:08,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:08,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-16 21:17:08,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941837797] [2021-06-16 21:17:08,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-16 21:17:08,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:08,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-16 21:17:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2021-06-16 21:17:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:08,226 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:08,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:08,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:08,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:08,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:08,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:08,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:08,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:33,691 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 44 [2021-06-16 21:17:35,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:17:35,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-16 21:17:35,283 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:35,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1583660301, now seen corresponding path program 3 times [2021-06-16 21:17:35,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:35,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416732315] [2021-06-16 21:17:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:35,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:35,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416732315] [2021-06-16 21:17:35,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416732315] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:35,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061449927] [2021-06-16 21:17:35,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:35,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-16 21:17:35,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:35,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:17:35,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:35,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061449927] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:35,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:35,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-16 21:17:35,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672872515] [2021-06-16 21:17:35,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 21:17:35,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:35,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 21:17:35,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-16 21:17:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:35,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:35,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:17:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:17:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:17:36,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:36,429 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:36,430 INFO L82 PathProgramCache]: Analyzing trace with hash -76160589, now seen corresponding path program 4 times [2021-06-16 21:17:36,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:36,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354236462] [2021-06-16 21:17:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:17:36,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:36,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354236462] [2021-06-16 21:17:36,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354236462] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:36,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925384559] [2021-06-16 21:17:36,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:36,558 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:17:36,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:36,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:17:36,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:17:36,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925384559] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:36,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:36,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-16 21:17:36,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013905126] [2021-06-16 21:17:36,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 21:17:36,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:36,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 21:17:36,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-16 21:17:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:36,745 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:36,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:17:36,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:36,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:17:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:17:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:37,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:37,152 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash -886105234, now seen corresponding path program 5 times [2021-06-16 21:17:37,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:37,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998448843] [2021-06-16 21:17:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:38,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:38,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998448843] [2021-06-16 21:17:38,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998448843] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:38,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217044307] [2021-06-16 21:17:38,169 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:38,215 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-16 21:17:38,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:38,216 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-16 21:17:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:39,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:39,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:39,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-06-16 21:17:39,323 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:39,332 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:39,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:39,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:39,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-16 21:17:39,345 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-16 21:17:39,353 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:39,404 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:39,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-06-16 21:17:39,619 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-16 21:17:39,843 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2021-06-16 21:17:40,412 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128 [2021-06-16 21:17:40,619 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-06-16 21:17:41,107 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-06-16 21:17:42,226 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-16 21:17:43,259 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-16 21:17:46,957 WARN L205 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-06-16 21:17:47,414 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-16 21:17:47,838 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-16 21:17:50,249 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-06-16 21:17:51,378 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-06-16 21:17:52,365 WARN L205 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-06-16 21:17:53,475 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-06-16 21:17:54,497 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-06-16 21:17:57,856 WARN L205 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-06-16 21:17:58,268 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-16 21:17:58,599 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-16 21:18:00,740 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-06-16 21:18:01,709 WARN L205 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-16 21:18:02,758 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-16 21:18:03,876 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-06-16 21:18:03,884 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-16 21:18:05,609 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-06-16 21:18:05,611 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-06-16 21:18:06,770 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-06-16 21:18:07,642 WARN L205 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-06-16 21:18:07,952 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-16 21:18:08,240 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-16 21:18:08,708 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-16 21:18:09,619 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-16 21:18:09,891 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-16 21:18:10,319 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-16 21:18:10,626 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:18:10,626 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-06-16 21:18:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:18:10,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217044307] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:18:10,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:18:10,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-06-16 21:18:10,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824521297] [2021-06-16 21:18:10,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-16 21:18:10,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:18:10,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-16 21:18:10,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-06-16 21:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:18:10,667 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:18:10,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:18:10,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:18:10,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:18:10,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:18:11,613 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-16 21:18:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:18:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:18:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 21:18:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:18:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:18:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 21:18:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:18:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:18:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:18:13,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-16 21:18:13,445 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:18:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:18:13,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1387257236, now seen corresponding path program 6 times [2021-06-16 21:18:13,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:18:13,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697016899] [2021-06-16 21:18:13,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:18:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:18:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:18:14,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:18:14,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697016899] [2021-06-16 21:18:14,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697016899] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:18:14,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964604516] [2021-06-16 21:18:14,780 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:18:14,823 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 21:18:14,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:18:14,824 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-16 21:18:14,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:18:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:18:16,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:18:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:18:16,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:18:16,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 93 [2021-06-16 21:18:16,697 INFO L550 ElimStorePlain]: Start of recursive call 2: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-16 21:18:16,712 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:18:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:18:16,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:18:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:18:16,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:18:16,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 67 [2021-06-16 21:18:16,721 INFO L550 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-16 21:18:16,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:18:16,814 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:18:16,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 67 treesize of output 199 [2021-06-16 21:18:17,232 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-16 21:18:17,619 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-16 21:18:18,070 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 199 [2021-06-16 21:18:19,644 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 197 DAG size of output: 217 [2021-06-16 21:18:21,360 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 192 DAG size of output: 204 [2021-06-16 21:18:22,839 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 187 DAG size of output: 199 [2021-06-16 21:18:23,173 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-06-16 21:18:25,672 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 396 DAG size of output: 343 [2021-06-16 21:18:32,197 WARN L205 SmtUtils]: Spent 6.52 s on a formula simplification. DAG size of input: 462 DAG size of output: 405 [2021-06-16 21:18:48,288 WARN L205 SmtUtils]: Spent 16.09 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-16 21:19:04,313 WARN L205 SmtUtils]: Spent 16.02 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-16 21:19:21,865 WARN L205 SmtUtils]: Spent 17.55 s on a formula simplification. DAG size of input: 542 DAG size of output: 484 [2021-06-16 21:20:17,122 WARN L205 SmtUtils]: Spent 55.25 s on a formula simplification. DAG size of input: 484 DAG size of output: 587 [2021-06-16 21:20:33,123 WARN L205 SmtUtils]: Spent 15.99 s on a formula simplification. DAG size of input: 476 DAG size of output: 476 [2021-06-16 21:20:33,385 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 168 [2021-06-16 21:20:33,511 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 132 [2021-06-16 21:20:33,658 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 126 [2021-06-16 21:20:33,803 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 120 [2021-06-16 21:20:33,951 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-16 21:20:34,266 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 184 [2021-06-16 21:20:34,473 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-06-16 21:20:34,756 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 162 [2021-06-16 21:20:35,884 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 269 DAG size of output: 260 [2021-06-16 21:20:36,293 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 155 [2021-06-16 21:20:36,891 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 179 [2021-06-16 21:20:40,448 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 386 DAG size of output: 360 [2021-06-16 21:20:46,780 WARN L205 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 409 DAG size of output: 409 [2021-06-16 21:20:49,265 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2021-06-16 21:20:49,421 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2021-06-16 21:20:49,960 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 207 [2021-06-16 21:20:50,154 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 135 [2021-06-16 21:20:50,941 WARN L205 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 266 [2021-06-16 21:20:51,688 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 280 [2021-06-16 21:20:51,911 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-06-16 21:20:52,545 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-16 21:20:52,997 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 226 [2021-06-16 21:20:53,788 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 385 [2021-06-16 21:20:54,103 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 130 [2021-06-16 21:20:54,308 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 150 [2021-06-16 21:20:57,095 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 531 DAG size of output: 487 [2021-06-16 21:21:02,152 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 2296 DAG size of output: 2269 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown