/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:48:30,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:48:30,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:48:30,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:48:30,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:48:30,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:48:30,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:48:30,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:48:30,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:48:30,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:48:30,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:48:30,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:48:30,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:48:30,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:48:30,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:48:30,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:48:30,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:48:30,252 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:48:30,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:48:30,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:48:30,289 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:48:30,289 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:48:30,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:48:30,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:48:30,293 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:48:30,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:48:30,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:48:30,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:48:30,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:48:30,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:48:30,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:48:30,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:48:30,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:48:30,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:48:30,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:48:30,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:48:30,297 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:48:30,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:48:30,298 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:48:30,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:48:30,298 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:48:30,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:48:30,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:48:30,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:48:30,661 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:48:30,662 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:48:30,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl [2021-07-14 21:48:30,663 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl' [2021-07-14 21:48:30,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:48:30,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:48:30,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:48:30,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:48:30,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:48:30,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:48:30,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:48:30,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:48:30,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:48:30,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/1) ... [2021-07-14 21:48:30,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:48:30,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:48:30,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:48:30,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:48:30,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (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 [2021-07-14 21:48:30,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:48:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:48:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:48:30,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:48:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:48:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:48:30,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:48:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:48:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:48:30,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:48:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:48:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:48:30,791 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:48:31,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:48:31,009 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:48:31,010 INFO L202 PluginConnector]: Adding new model parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:48:31 BoogieIcfgContainer [2021-07-14 21:48:31,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:48:31,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:48:31,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:48:31,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:48:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:48:30" (1/2) ... [2021-07-14 21:48:31,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef8a0b0 and model type parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:48:31, skipping insertion in model container [2021-07-14 21:48:31,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:48:31" (2/2) ... [2021-07-14 21:48:31,017 INFO L111 eAbstractionObserver]: Analyzing ICFG parray-copy.wvr.bpl [2021-07-14 21:48:31,022 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:48:31,022 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:48:31,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:48:31,022 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:48:31,053 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:48:31,072 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 [2021-07-14 21:48:31,114 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:48:31,114 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:48:31,114 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:48:31,114 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:48:31,114 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:48:31,114 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:48:31,114 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:48:31,115 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:48:31,278 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1224139070, now seen corresponding path program 1 times [2021-07-14 21:48:31,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:31,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187326598] [2021-07-14 21:48:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:48:31,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:31,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187326598] [2021-07-14 21:48:31,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187326598] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:48:31,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:48:31,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 21:48:31,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139926908] [2021-07-14 21:48:31,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 21:48:31,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:31,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 21:48:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-14 21:48:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:31,564 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:31,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2021-07-14 21:48:31,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:31,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:48:31,649 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:31,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:31,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1274598684, now seen corresponding path program 1 times [2021-07-14 21:48:31,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:31,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109471399] [2021-07-14 21:48:31,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:31,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:31,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109471399] [2021-07-14 21:48:31,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109471399] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:31,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460034154] [2021-07-14 21:48:31,959 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 [2021-07-14 21:48:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:32,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 21:48:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:32,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-07-14 21:48:32,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:32,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:32,412 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:32,413 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2021-07-14 21:48:32,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:32,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460034154] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:32,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:32,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:48:32,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037997997] [2021-07-14 21:48:32,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:48:32,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:32,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:48:32,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:48:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:32,443 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:32,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:48:32,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:32,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:32,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:32,989 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:32,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1924653178, now seen corresponding path program 2 times [2021-07-14 21:48:32,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:32,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916477528] [2021-07-14 21:48:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:33,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:33,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916477528] [2021-07-14 21:48:33,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916477528] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:33,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991702501] [2021-07-14 21:48:33,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:33,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:48:33,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:33,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:48:33,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:33,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991702501] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:33,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:33,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-07-14 21:48:33,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689618067] [2021-07-14 21:48:33,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 21:48:33,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:33,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 21:48:33,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-07-14 21:48:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:33,250 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:33,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 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) [2021-07-14 21:48:33,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:33,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:33,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:33,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:33,628 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:33,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:33,629 INFO L82 PathProgramCache]: Analyzing trace with hash 158791000, now seen corresponding path program 3 times [2021-07-14 21:48:33,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:33,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798972817] [2021-07-14 21:48:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:34,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:34,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798972817] [2021-07-14 21:48:34,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798972817] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:34,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142690054] [2021-07-14 21:48:34,118 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 [2021-07-14 21:48:34,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 21:48:34,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:34,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:48:34,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:34,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-07-14 21:48:34,262 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:34,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:34,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:34,273 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:22 [2021-07-14 21:48:34,341 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-07-14 21:48:34,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-07-14 21:48:34,344 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:34,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:34,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:34,362 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:34 [2021-07-14 21:48:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 21:48:34,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142690054] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:34,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:34,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 21 [2021-07-14 21:48:34,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853534844] [2021-07-14 21:48:34,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 21:48:34,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:34,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 21:48:34,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-07-14 21:48:34,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:34,538 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:34,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 21 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:48:34,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:34,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:34,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:34,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:35,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:35,447 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:35,448 INFO L82 PathProgramCache]: Analyzing trace with hash 840024212, now seen corresponding path program 4 times [2021-07-14 21:48:35,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:35,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685327697] [2021-07-14 21:48:35,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:35,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:35,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685327697] [2021-07-14 21:48:35,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685327697] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:35,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876594864] [2021-07-14 21:48:35,529 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 [2021-07-14 21:48:35,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:48:35,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:35,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:48:35,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 21:48:35,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876594864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:35,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:35,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2021-07-14 21:48:35,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575682295] [2021-07-14 21:48:35,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:48:35,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:35,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:48:35,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:48:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:35,665 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:35,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2021-07-14 21:48:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:36,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:36,054 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:36,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1950970382, now seen corresponding path program 5 times [2021-07-14 21:48:36,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:36,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886696708] [2021-07-14 21:48:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:36,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:36,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886696708] [2021-07-14 21:48:36,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886696708] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:36,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142260832] [2021-07-14 21:48:36,140 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 [2021-07-14 21:48:36,180 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:48:36,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:36,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:48:36,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:36,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142260832] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:36,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:36,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-07-14 21:48:36,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136508143] [2021-07-14 21:48:36,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 21:48:36,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:36,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 21:48:36,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-07-14 21:48:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:36,277 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:36,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:36,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:36,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:36,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:36,691 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash 257784784, now seen corresponding path program 6 times [2021-07-14 21:48:36,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:36,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101617190] [2021-07-14 21:48:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:37,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:37,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101617190] [2021-07-14 21:48:37,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101617190] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:37,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194495590] [2021-07-14 21:48:37,558 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 [2021-07-14 21:48:37,594 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 21:48:37,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:37,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:48:37,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:37,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-07-14 21:48:37,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:37,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:37,741 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:37,741 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:22 [2021-07-14 21:48:37,816 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-07-14 21:48:37,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-07-14 21:48:37,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:37,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:37,835 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:37,835 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:34 [2021-07-14 21:48:37,945 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-07-14 21:48:37,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-07-14 21:48:37,947 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:37,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:37,968 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:37,969 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:46 [2021-07-14 21:48:38,096 INFO L354 Elim1Store]: treesize reduction 72, result has 18.2 percent of original size [2021-07-14 21:48:38,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 38 [2021-07-14 21:48:38,099 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:38,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:38,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:38,129 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:59, output treesize:58 [2021-07-14 21:48:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-14 21:48:38,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194495590] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:38,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:38,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 27 [2021-07-14 21:48:38,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803575533] [2021-07-14 21:48:38,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 21:48:38,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:38,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 21:48:38,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2021-07-14 21:48:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:38,406 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:38,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:38,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:39,513 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2021-07-14 21:48:39,683 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 32 [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:40,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:40,867 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:40,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:40,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1078911928, now seen corresponding path program 7 times [2021-07-14 21:48:40,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:40,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886817229] [2021-07-14 21:48:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:41,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:41,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886817229] [2021-07-14 21:48:41,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886817229] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:41,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072875503] [2021-07-14 21:48:41,032 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 [2021-07-14 21:48:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:41,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:48:41,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-14 21:48:41,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072875503] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:41,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:41,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 19 [2021-07-14 21:48:41,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760744787] [2021-07-14 21:48:41,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:48:41,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:48:41,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:48:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:41,167 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:41,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 19 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:41,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:41,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 21:48:41,621 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:41,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1135004838, now seen corresponding path program 8 times [2021-07-14 21:48:41,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:41,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625537770] [2021-07-14 21:48:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 64 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:41,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:41,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625537770] [2021-07-14 21:48:41,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625537770] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:41,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954359500] [2021-07-14 21:48:41,776 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:41,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:48:41,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:41,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:48:41,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 21:48:41,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954359500] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:41,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:41,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 20 [2021-07-14 21:48:41,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632355121] [2021-07-14 21:48:41,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 21:48:41,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:41,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 21:48:41,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-07-14 21:48:41,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:41,941 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:41,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 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) [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:41,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:42,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:42,497 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:42,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1594761852, now seen corresponding path program 9 times [2021-07-14 21:48:42,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:42,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968225031] [2021-07-14 21:48:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 64 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:42,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:42,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968225031] [2021-07-14 21:48:42,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968225031] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:42,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516215672] [2021-07-14 21:48:42,668 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:42,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-14 21:48:42,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:42,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 21:48:42,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 64 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:42,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516215672] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:42,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:42,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-07-14 21:48:42,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44747691] [2021-07-14 21:48:42,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 21:48:42,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:42,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 21:48:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2021-07-14 21:48:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:42,841 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:42,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-07-14 21:48:42,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:42,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:42,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:42,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:43,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:43,405 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:43,406 INFO L82 PathProgramCache]: Analyzing trace with hash -675533086, now seen corresponding path program 10 times [2021-07-14 21:48:43,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:43,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393099988] [2021-07-14 21:48:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:43,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:43,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393099988] [2021-07-14 21:48:43,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393099988] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:43,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640318051] [2021-07-14 21:48:43,620 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:43,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:48:43,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:43,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 21:48:43,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:43,802 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:43,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640318051] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:43,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:43,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2021-07-14 21:48:43,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486821533] [2021-07-14 21:48:43,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:48:43,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:43,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:48:43,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:48:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:43,804 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:43,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 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) [2021-07-14 21:48:43,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:43,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:43,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:43,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:43,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:43,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:44,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-07-14 21:48:44,381 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:44,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2059951936, now seen corresponding path program 11 times [2021-07-14 21:48:44,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:44,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788563925] [2021-07-14 21:48:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:45,277 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-07-14 21:48:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 12 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:46,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:46,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788563925] [2021-07-14 21:48:46,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788563925] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:46,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005885586] [2021-07-14 21:48:46,225 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:46,281 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 21:48:46,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:46,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-14 21:48:46,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:46,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-07-14 21:48:46,693 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,701 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:46,702 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,702 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:24 [2021-07-14 21:48:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-07-14 21:48:46,765 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:46,776 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,776 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:35 [2021-07-14 21:48:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-07-14 21:48:46,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:46,853 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,853 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:46 [2021-07-14 21:48:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:46,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-07-14 21:48:46,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:46,950 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:46,950 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:57 [2021-07-14 21:48:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-07-14 21:48:47,017 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:47,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:47,033 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:48:47,034 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:68 [2021-07-14 21:48:47,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-07-14 21:48:47,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:47,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:47,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:47,150 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:81, output treesize:80 [2021-07-14 21:48:47,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,300 INFO L354 Elim1Store]: treesize reduction 126, result has 24.6 percent of original size [2021-07-14 21:48:47,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 88 [2021-07-14 21:48:47,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:47,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:47,337 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:47,337 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:93, output treesize:92 [2021-07-14 21:48:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:48:47,557 INFO L354 Elim1Store]: treesize reduction 200, result has 18.7 percent of original size [2021-07-14 21:48:47,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 78 treesize of output 98 [2021-07-14 21:48:47,560 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:48:47,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:48:47,593 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 21:48:47,593 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:105, output treesize:104 [2021-07-14 21:48:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 21:48:47,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005885586] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:47,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:47,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21] total 45 [2021-07-14 21:48:47,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397128212] [2021-07-14 21:48:47,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-14 21:48:47,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:47,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-14 21:48:47,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1849, Unknown=0, NotChecked=0, Total=2070 [2021-07-14 21:48:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:47,928 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:47,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.108695652173913) internal successors, (97), 45 states have internal predecessors, (97), 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) [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:47,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:49,638 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 33 [2021-07-14 21:48:49,845 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 29 [2021-07-14 21:48:50,015 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 35 [2021-07-14 21:48:50,225 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 38 [2021-07-14 21:48:50,522 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2021-07-14 21:48:50,711 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 40 [2021-07-14 21:48:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:53,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:53,086 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:53,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:53,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1531924792, now seen corresponding path program 12 times [2021-07-14 21:48:53,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:53,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644973187] [2021-07-14 21:48:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 144 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:53,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:53,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644973187] [2021-07-14 21:48:53,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644973187] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:53,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094086528] [2021-07-14 21:48:53,320 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:53,360 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-07-14 21:48:53,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:53,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 21:48:53,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 144 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:53,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094086528] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:53,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:53,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2021-07-14 21:48:53,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431743902] [2021-07-14 21:48:53,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 21:48:53,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:53,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 21:48:53,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2021-07-14 21:48:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:53,509 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:53,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 27 states have internal predecessors, (68), 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) [2021-07-14 21:48:53,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:53,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:53,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:53,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:53,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:53,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:54,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-14 21:48:54,213 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:54,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:54,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1136360042, now seen corresponding path program 13 times [2021-07-14 21:48:54,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:54,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895388346] [2021-07-14 21:48:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 144 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:54,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:54,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895388346] [2021-07-14 21:48:54,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895388346] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:54,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927135345] [2021-07-14 21:48:54,498 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:54,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-14 21:48:54,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 138 proven. 81 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 21:48:54,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927135345] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:54,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:54,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 28 [2021-07-14 21:48:54,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581799252] [2021-07-14 21:48:54,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 21:48:54,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:54,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 21:48:54,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=587, Unknown=0, NotChecked=0, Total=756 [2021-07-14 21:48:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:54,713 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:54,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 28 states have internal predecessors, (72), 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) [2021-07-14 21:48:54,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:54,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:55,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:55,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:48:55,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:55,469 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1262609804, now seen corresponding path program 14 times [2021-07-14 21:48:55,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:55,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205059957] [2021-07-14 21:48:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 144 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:55,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:55,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205059957] [2021-07-14 21:48:55,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205059957] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:55,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704790898] [2021-07-14 21:48:55,724 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:55,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:48:55,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:55,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 21:48:55,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 142 proven. 100 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 21:48:55,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704790898] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:55,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:55,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 29 [2021-07-14 21:48:55,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561870975] [2021-07-14 21:48:55,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 21:48:55,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:55,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 21:48:55,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2021-07-14 21:48:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:55,897 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:55,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 29 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) [2021-07-14 21:48:55,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:55,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:55,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:55,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:55,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:48:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:48:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-14 21:48:56,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 21:48:56,587 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:56,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1965420498, now seen corresponding path program 15 times [2021-07-14 21:48:56,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:56,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50684901] [2021-07-14 21:48:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 144 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:56,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:48:56,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50684901] [2021-07-14 21:48:56,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50684901] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:56,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335179915] [2021-07-14 21:48:56,878 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:48:56,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-07-14 21:48:56,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:48:56,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-14 21:48:56,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:48:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 144 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:48:57,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335179915] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:48:57,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:48:57,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2021-07-14 21:48:57,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999105900] [2021-07-14 21:48:57,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:48:57,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:48:57,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:48:57,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:48:57,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:57,095 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:48:57,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.466666666666667) internal successors, (74), 30 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) [2021-07-14 21:48:57,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:57,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:57,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-07-14 21:48:57,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:48:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-14 21:48:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 21:48:57,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 21:48:57,912 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:48:57,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:48:57,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1158814288, now seen corresponding path program 16 times [2021-07-14 21:48:57,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:48:57,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875876979] [2021-07-14 21:48:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:48:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:48:59,220 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-07-14 21:48:59,620 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-07-14 21:49:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 49 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:49:00,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:49:00,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875876979] [2021-07-14 21:49:00,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875876979] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:49:00,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938085122] [2021-07-14 21:49:00,448 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:49:00,484 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:49:00,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:49:00,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 54 conjunts are in the unsatisfiable core [2021-07-14 21:49:00,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:49:01,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-07-14 21:49:01,255 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,260 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2021-07-14 21:49:01,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-07-14 21:49:01,322 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,330 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,330 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:34 [2021-07-14 21:49:01,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-07-14 21:49:01,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:45 [2021-07-14 21:49:01,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-07-14 21:49:01,484 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,493 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,494 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,494 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:56 [2021-07-14 21:49:01,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-07-14 21:49:01,562 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,576 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,576 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:67 [2021-07-14 21:49:01,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2021-07-14 21:49:01,647 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,660 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:78 [2021-07-14 21:49:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2021-07-14 21:49:01,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,768 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:90, output treesize:89 [2021-07-14 21:49:01,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 110 [2021-07-14 21:49:01,873 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:01,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:01,890 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:100 [2021-07-14 21:49:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 124 [2021-07-14 21:49:02,008 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,043 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:02,044 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,045 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:111 [2021-07-14 21:49:02,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 138 [2021-07-14 21:49:02,180 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:02,202 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,202 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:122 [2021-07-14 21:49:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 152 [2021-07-14 21:49:02,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:02,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,374 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:133 [2021-07-14 21:49:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:49:02,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 162 [2021-07-14 21:49:02,548 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:02,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:02,578 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:02,578 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:141, output treesize:140 [2021-07-14 21:49:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:49:02,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938085122] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:49:02,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:49:02,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32] total 65 [2021-07-14 21:49:02,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004779813] [2021-07-14 21:49:02,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-07-14 21:49:02,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:49:02,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-07-14 21:49:02,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3752, Unknown=0, NotChecked=0, Total=4160 [2021-07-14 21:49:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:49:02,807 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:49:02,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.076923076923077) internal successors, (135), 65 states have internal predecessors, (135), 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) [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:49:02,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-07-14 21:49:02,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 21:49:02,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:49:07,350 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 56 [2021-07-14 21:49:07,628 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-14 21:49:07,870 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-14 21:49:08,080 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-07-14 21:49:08,272 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 21:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 21:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-07-14 21:49:09,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 21:49:09,411 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:49:09,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:49:09,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1354867732, now seen corresponding path program 17 times [2021-07-14 21:49:09,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:49:09,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180610247] [2021-07-14 21:49:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:49:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:49:11,410 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-07-14 21:49:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:49:12,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:49:12,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180610247] [2021-07-14 21:49:12,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180610247] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:49:12,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180100231] [2021-07-14 21:49:12,853 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:49:12,921 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-07-14 21:49:12,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:49:12,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 46 conjunts are in the unsatisfiable core [2021-07-14 21:49:12,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:49:13,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-07-14 21:49:13,649 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:13,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:13,658 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:13,658 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2021-07-14 21:49:13,732 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-07-14 21:49:13,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-07-14 21:49:13,734 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:13,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:13,747 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:13,747 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:37 [2021-07-14 21:49:13,847 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-07-14 21:49:13,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-07-14 21:49:13,849 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:13,864 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:13,870 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:13,870 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:49 [2021-07-14 21:49:14,005 INFO L354 Elim1Store]: treesize reduction 72, result has 18.2 percent of original size [2021-07-14 21:49:14,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 38 [2021-07-14 21:49:14,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:14,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:14,036 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:14,036 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:62, output treesize:61 [2021-07-14 21:49:14,173 INFO L354 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2021-07-14 21:49:14,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 48 [2021-07-14 21:49:14,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:14,197 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:14,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:14,206 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:74, output treesize:73 [2021-07-14 21:49:14,401 INFO L354 Elim1Store]: treesize reduction 160, result has 14.0 percent of original size [2021-07-14 21:49:14,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 44 treesize of output 58 [2021-07-14 21:49:14,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:14,428 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:14,437 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:14,437 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:86, output treesize:85 [2021-07-14 21:49:14,865 INFO L354 Elim1Store]: treesize reduction 216, result has 12.6 percent of original size [2021-07-14 21:49:14,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 51 treesize of output 68 [2021-07-14 21:49:14,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:14,899 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:14,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:14,911 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:98, output treesize:97 [2021-07-14 21:49:20,071 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 30 [2021-07-14 21:49:20,071 INFO L354 Elim1Store]: treesize reduction 280, result has 11.4 percent of original size [2021-07-14 21:49:20,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 58 treesize of output 78 [2021-07-14 21:49:20,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:49:20,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:49:20,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2021-07-14 21:49:20,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:110, output treesize:109 [2021-07-14 21:49:53,404 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 21:49:53,406 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 21:49:53,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 21:49:53,607 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 46 more [2021-07-14 21:49:53,610 INFO L168 Benchmark]: Toolchain (without parser) took 82924.06 ms. Allocated memory was 203.4 MB in the beginning and 660.6 MB in the end (delta: 457.2 MB). Free memory was 183.6 MB in the beginning and 571.3 MB in the end (delta: -387.7 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.73 ms. Allocated memory is still 203.4 MB. Free memory is still 184.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.76 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 182.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L168 Benchmark]: Boogie Preprocessor took 14.70 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 181.1 MB in the end (delta: 946.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L168 Benchmark]: RCFGBuilder took 283.25 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 168.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L168 Benchmark]: TraceAbstraction took 82597.88 ms. Allocated memory was 203.4 MB in the beginning and 660.6 MB in the end (delta: 457.2 MB). Free memory was 167.7 MB in the beginning and 571.3 MB in the end (delta: -403.6 MB). Peak memory consumption was 55.2 MB. Max. memory is 8.0 GB. [2021-07-14 21:49:53,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.73 ms. Allocated memory is still 203.4 MB. Free memory is still 184.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.76 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 182.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.70 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 181.1 MB in the end (delta: 946.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 283.25 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 168.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 82597.88 ms. Allocated memory was 203.4 MB in the beginning and 660.6 MB in the end (delta: 457.2 MB). Free memory was 167.7 MB in the beginning and 571.3 MB in the end (delta: -403.6 MB). Peak memory consumption was 55.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...