/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 22:56:27,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 22:56:27,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 22:56:27,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 22:56:27,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 22:56:27,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 22:56:27,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 22:56:27,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 22:56:27,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 22:56:27,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 22:56:27,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 22:56:27,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 22:56:27,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 22:56:27,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 22:56:27,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 22:56:27,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 22:56:27,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 22:56:27,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-06 22:56:27,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 22:56:27,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 22:56:27,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 22:56:27,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 22:56:27,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 22:56:27,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 22:56:27,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 22:56:27,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 22:56:27,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 22:56:27,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 22:56:27,667 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 22:56:27,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 22:56:27,668 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 22:56:27,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 22:56:27,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 22:56:27,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 22:56:27,923 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 22:56:27,925 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 22:56:27,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl [2021-06-06 22:56:27,926 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl' [2021-06-06 22:56:27,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 22:56:27,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 22:56:27,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 22:56:27,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 22:56:27,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 22:56:27,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 22:56:27,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 22:56:27,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 22:56:27,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 22:56:27,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... [2021-06-06 22:56:27,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 22:56:27,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 22:56:27,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 22:56:27,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 22:56:27,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 22:56:28,036 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 22:56:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 22:56:28,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 22:56:28,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 22:56:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 22:56:28,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 22:56:28,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 22:56:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 22:56:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 22:56:28,038 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 22:56:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 22:56:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 22:56:28,039 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 22:56:28,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 22:56:28,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 22:56:28,188 INFO L202 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:56:28 BoogieIcfgContainer [2021-06-06 22:56:28,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 22:56:28,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 22:56:28,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 22:56:28,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 22:56:28,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:27" (1/2) ... [2021-06-06 22:56:28,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdbb481 and model type max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 10:56:28, skipping insertion in model container [2021-06-06 22:56:28,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:56:28" (2/2) ... [2021-06-06 22:56:28,193 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun-alt.wvr.bpl [2021-06-06 22:56:28,197 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 22:56:28,197 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 22:56:28,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 22:56:28,197 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 22:56:28,229 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 22:56:28,248 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 [2021-06-06 22:56:28,276 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 22:56:28,276 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 22:56:28,276 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 22:56:28,277 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 22:56:28,277 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 22:56:28,277 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 22:56:28,277 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 22:56:28,277 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 22:56:28,347 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1529172741, now seen corresponding path program 1 times [2021-06-06 22:56:28,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:28,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706155071] [2021-06-06 22:56:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:28,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:28,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706155071] [2021-06-06 22:56:28,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706155071] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:56:28,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:56:28,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 22:56:28,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036094187] [2021-06-06 22:56:28,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 22:56:28,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:28,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 22:56:28,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-06 22:56:28,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:28,562 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:28,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:28,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:28,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 22:56:28,641 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:28,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1702466087, now seen corresponding path program 1 times [2021-06-06 22:56:28,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:28,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664516087] [2021-06-06 22:56:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:28,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:28,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664516087] [2021-06-06 22:56:28,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664516087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:56:28,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:56:28,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 22:56:28,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552959233] [2021-06-06 22:56:28,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 22:56:28,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:28,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 22:56:28,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 22:56:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:28,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:28,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:28,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:28,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:28,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 22:56:28,750 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:28,750 INFO L82 PathProgramCache]: Analyzing trace with hash -458906501, now seen corresponding path program 1 times [2021-06-06 22:56:28,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:28,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580172700] [2021-06-06 22:56:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:28,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:28,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580172700] [2021-06-06 22:56:28,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580172700] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:28,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423012500] [2021-06-06 22:56:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-06 22:56:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:28,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 22:56:28,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:29,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423012500] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:29,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:29,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 22:56:29,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430796617] [2021-06-06 22:56:29,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 22:56:29,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:29,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 22:56:29,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-06 22:56:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:29,040 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:29,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:29,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:29,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:29,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:29,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:29,358 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:29,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1431714215, now seen corresponding path program 2 times [2021-06-06 22:56:29,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:29,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113866297] [2021-06-06 22:56:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:29,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:29,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113866297] [2021-06-06 22:56:29,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113866297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:29,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609521093] [2021-06-06 22:56:29,791 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) [2021-06-06 22:56:29,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 22:56:29,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:29,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 22:56:29,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:30,508 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:30,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 28 [2021-06-06 22:56:30,514 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,533 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:30,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2021-06-06 22:56:30,544 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,572 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:30,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2021-06-06 22:56:30,574 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,595 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-06 22:56:30,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 21 [2021-06-06 22:56:30,598 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,617 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:30,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2021-06-06 22:56:30,627 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,637 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:30,638 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,647 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:30,648 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,662 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-06-06 22:56:30,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 19 [2021-06-06 22:56:30,664 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,681 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:30,683 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,693 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:30,694 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,704 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:30,705 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,715 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2021-06-06 22:56:30,716 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,726 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:30,727 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,737 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:30,739 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,748 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:30,749 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,757 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:30,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2021-06-06 22:56:30,758 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:30,879 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2021-06-06 22:56:30,879 INFO L628 ElimStorePlain]: treesize reduction 4, result has 97.4 percent of original size [2021-06-06 22:56:30,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-06-06 22:56:30,888 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 2 variables, input treesize:697, output treesize:177 [2021-06-06 22:56:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:31,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609521093] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:31,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:31,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-06 22:56:31,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093959781] [2021-06-06 22:56:31,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 22:56:31,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:31,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 22:56:31,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-06-06 22:56:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:31,103 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:31,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:31,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:31,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:31,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:31,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:32,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:32,147 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:32,147 INFO L82 PathProgramCache]: Analyzing trace with hash 24177557, now seen corresponding path program 3 times [2021-06-06 22:56:32,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:32,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863835904] [2021-06-06 22:56:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:32,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:32,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863835904] [2021-06-06 22:56:32,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863835904] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:32,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992427287] [2021-06-06 22:56:32,215 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:32,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 22:56:32,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:32,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 22:56:32,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:32,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992427287] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:32,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:32,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-06 22:56:32,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251735521] [2021-06-06 22:56:32,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 22:56:32,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:32,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 22:56:32,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-06-06 22:56:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:32,374 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:32,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:32,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:32,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:32,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:32,881 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:32,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:32,881 INFO L82 PathProgramCache]: Analyzing trace with hash -97824901, now seen corresponding path program 4 times [2021-06-06 22:56:32,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:32,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356053160] [2021-06-06 22:56:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:32,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:32,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356053160] [2021-06-06 22:56:32,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356053160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:32,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884708497] [2021-06-06 22:56:32,967 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:32,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 22:56:32,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:32,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 22:56:32,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:33,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884708497] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:33,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:33,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 22:56:33,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088112611] [2021-06-06 22:56:33,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 22:56:33,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:33,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 22:56:33,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 22:56:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:33,103 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:33,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:33,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:33,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:56:33,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-06-06 22:56:33,405 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:33,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:33,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1817865127, now seen corresponding path program 5 times [2021-06-06 22:56:33,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:33,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713133025] [2021-06-06 22:56:33,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:33,923 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-06-06 22:56:34,080 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-06-06 22:56:34,352 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2021-06-06 22:56:34,725 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2021-06-06 22:56:35,052 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2021-06-06 22:56:35,241 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2021-06-06 22:56:35,373 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-06 22:56:35,514 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2021-06-06 22:56:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:35,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:35,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713133025] [2021-06-06 22:56:35,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713133025] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:35,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916843277] [2021-06-06 22:56:35,699 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:35,739 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 22:56:35,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:35,740 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 22:56:35,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:37,477 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-06 22:56:39,911 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-06 22:56:41,780 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 361 [2021-06-06 22:56:43,397 WARN L205 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-06 22:56:44,986 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2021-06-06 22:56:46,356 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-06-06 22:56:47,538 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2021-06-06 22:56:48,768 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-06-06 22:56:49,462 INFO L446 ElimStorePlain]: Different costs {9=[v_prenex_180, v_prenex_160, v_prenex_182, v_prenex_140, v_prenex_184, v_prenex_162, v_prenex_142, v_prenex_186, v_prenex_164, v_prenex_144, v_prenex_166, v_prenex_168, v_prenex_146, v_prenex_125, v_prenex_148, v_prenex_127, v_prenex_170, v_prenex_150, v_prenex_174, v_prenex_152, v_prenex_131, v_prenex_154, v_prenex_176, v_prenex_133, v_prenex_156, v_prenex_178, v_prenex_135, v_prenex_158, v_prenex_137, v_prenex_129, A], 15=[v_prenex_172]} [2021-06-06 22:56:49,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:49,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:49,525 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 51 treesize of output 25 [2021-06-06 22:56:49,526 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:49,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:49,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,573 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 51 treesize of output 22 [2021-06-06 22:56:49,574 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:54,373 WARN L205 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 795 DAG size of output: 655 [2021-06-06 22:56:54,374 INFO L628 ElimStorePlain]: treesize reduction 2077, result has 44.6 percent of original size [2021-06-06 22:56:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-06 22:56:54,427 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:55,598 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 643 [2021-06-06 22:56:55,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:55,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-06 22:56:55,633 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:56,727 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 631 [2021-06-06 22:56:56,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:56,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,760 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:56,761 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 40 treesize of output 22 [2021-06-06 22:56:56,763 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:57,798 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 618 [2021-06-06 22:56:57,798 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:57,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:56:57,827 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:58,860 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 605 [2021-06-06 22:56:58,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:58,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-06 22:56:58,895 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:59,877 WARN L205 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2021-06-06 22:56:59,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-06 22:56:59,915 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:00,841 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 580 [2021-06-06 22:57:00,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:00,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:00,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,868 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 44 treesize of output 22 [2021-06-06 22:57:00,869 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:01,754 WARN L205 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2021-06-06 22:57:01,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:01,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:01,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,779 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 44 treesize of output 22 [2021-06-06 22:57:01,781 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:02,675 WARN L205 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2021-06-06 22:57:02,676 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:02,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:02,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:02,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:02,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:02,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:02,701 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 42 treesize of output 22 [2021-06-06 22:57:02,703 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:03,536 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 539 [2021-06-06 22:57:03,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:03,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:03,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:03,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:03,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:03,563 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:04,365 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 526 [2021-06-06 22:57:04,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:04,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:04,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:04,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:04,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:04,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:04,389 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 44 treesize of output 22 [2021-06-06 22:57:04,392 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:05,180 WARN L205 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 512 [2021-06-06 22:57:05,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:05,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:05,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,223 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 44 treesize of output 22 [2021-06-06 22:57:05,225 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:05,976 WARN L205 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 499 [2021-06-06 22:57:05,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:05,996 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:05,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:05,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,001 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 42 treesize of output 22 [2021-06-06 22:57:06,003 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:06,737 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2021-06-06 22:57:06,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:06,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:06,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:06,761 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 40 treesize of output 22 [2021-06-06 22:57:06,766 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:07,488 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2021-06-06 22:57:07,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:07,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:07,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:07,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:07,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:07,512 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 44 treesize of output 22 [2021-06-06 22:57:07,514 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:08,177 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 458 [2021-06-06 22:57:08,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:08,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:08,202 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:08,839 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2021-06-06 22:57:08,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:08,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:08,865 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:09,474 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2021-06-06 22:57:09,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:09,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:09,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:09,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:09,495 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 44 treesize of output 22 [2021-06-06 22:57:09,497 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:10,082 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 419 [2021-06-06 22:57:10,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:10,104 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:10,629 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2021-06-06 22:57:10,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:10,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:10,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-06 22:57:10,661 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:11,149 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-06-06 22:57:11,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:11,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:11,173 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:11,652 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2021-06-06 22:57:11,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:11,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:11,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:11,682 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 42 treesize of output 22 [2021-06-06 22:57:11,684 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:12,139 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-06-06 22:57:12,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:12,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:12,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,176 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 36 treesize of output 22 [2021-06-06 22:57:12,179 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:12,608 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2021-06-06 22:57:12,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:12,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:12,634 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:13,043 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-06-06 22:57:13,044 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:13,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-06 22:57:13,063 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:13,467 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-06 22:57:13,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-06 22:57:13,486 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:13,851 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2021-06-06 22:57:13,852 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:13,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:13,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:13,868 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 44 treesize of output 22 [2021-06-06 22:57:13,870 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:14,213 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2021-06-06 22:57:14,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-06 22:57:14,241 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:14,570 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-06 22:57:14,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:14,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:14,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,587 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 38 treesize of output 22 [2021-06-06 22:57:14,590 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:14,901 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2021-06-06 22:57:14,901 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:14,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:14,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:14,920 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 42 treesize of output 22 [2021-06-06 22:57:14,922 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:15,217 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-06 22:57:15,218 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:15,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:15,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-06-06 22:57:15,241 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:15,517 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2021-06-06 22:57:15,517 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:15,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-06-06 22:57:15,539 INFO L247 ElimStorePlain]: Needed 34 recursive calls to eliminate 96 variables, input treesize:3853, output treesize:71 [2021-06-06 22:57:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:15,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916843277] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:15,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:15,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-06 22:57:15,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058706539] [2021-06-06 22:57:15,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-06 22:57:15,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:15,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-06 22:57:15,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-06 22:57:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:15,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:15,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:15,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:16,122 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 33 [2021-06-06 22:57:16,585 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 51 [2021-06-06 22:57:17,108 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 61 [2021-06-06 22:57:17,315 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-06-06 22:57:17,665 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 72 [2021-06-06 22:57:17,952 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 83 [2021-06-06 22:57:18,976 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 126 [2021-06-06 22:57:20,721 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 220 DAG size of output: 121 [2021-06-06 22:57:23,656 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 528 DAG size of output: 160 [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:24,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-06-06 22:57:24,338 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:24,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1214113353, now seen corresponding path program 6 times [2021-06-06 22:57:24,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:24,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578806545] [2021-06-06 22:57:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:24,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:57:24,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578806545] [2021-06-06 22:57:24,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578806545] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:24,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910068944] [2021-06-06 22:57:24,436 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:57:24,483 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 22:57:24,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:57:24,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 22:57:24,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:57:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:24,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910068944] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:24,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:24,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-06-06 22:57:24,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769322903] [2021-06-06 22:57:24,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 22:57:24,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 22:57:24,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2021-06-06 22:57:24,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:24,710 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:24,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:24,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:25,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:57:25,820 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash -42228101, now seen corresponding path program 7 times [2021-06-06 22:57:25,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:25,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789158667] [2021-06-06 22:57:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:57:25,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:57:25,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789158667] [2021-06-06 22:57:25,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789158667] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:25,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695889707] [2021-06-06 22:57:25,912 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:57:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:25,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 22:57:25,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:57:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:57:26,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695889707] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:26,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:26,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2021-06-06 22:57:26,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474949821] [2021-06-06 22:57:26,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 22:57:26,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:26,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 22:57:26,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-06-06 22:57:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:26,084 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:26,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:26,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 22:57:26,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-06-06 22:57:26,433 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:26,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:26,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1036660057, now seen corresponding path program 8 times [2021-06-06 22:57:26,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:26,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746637210] [2021-06-06 22:57:26,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:27,712 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 126 [2021-06-06 22:57:27,969 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-06-06 22:57:28,706 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 186 [2021-06-06 22:57:29,111 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 85 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown