/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/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:51:28,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:51:28,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:51:28,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:51:28,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:51:28,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:51:28,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:51:28,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:51:28,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:51:28,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:51:28,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:51:28,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:51:28,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:51:28,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:51:28,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:51:28,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:51:28,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:51:28,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 21:51:28,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 21:51:28,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 21:51:28,120 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 21:51:28,135 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:51:28,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:51:28,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:51:28,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:51:28,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:51:28,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:51:28,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:51:28,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:51:28,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:51:28,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:51:28,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:51:28,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:51:28,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:51:28,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:51:28,154 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:51:28,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:51:28,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:51:28,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:51:28,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:51:28,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:51:28,442 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:51:28,446 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:51:28,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-07-14 21:51:28,447 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-07-14 21:51:28,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:51:28,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:51:28,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:51:28,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:51:28,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:51:28,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:51:28,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:51:28,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:51:28,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:51:28,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/1) ... [2021-07-14 21:51:28,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:51:28,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:51:28,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:51:28,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:51:28,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (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 21:51:28,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:51:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:51:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:51:28,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:51:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:51:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:51:28,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:51:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:51:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:51:28,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:51:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:51:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:51:28,544 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 21:51:28,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:51:28,728 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:51:28,730 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:51:28 BoogieIcfgContainer [2021-07-14 21:51:28,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:51:28,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:51:28,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:51:28,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:51:28,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:51:28" (1/2) ... [2021-07-14 21:51:28,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a663b5 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:51:28, skipping insertion in model container [2021-07-14 21:51:28,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:51:28" (2/2) ... [2021-07-14 21:51:28,735 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-07-14 21:51:28,739 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:51:28,739 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:51:28,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:51:28,740 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:51:28,773 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:51:28,788 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 21:51:28,876 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:51:28,876 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:51:28,876 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:51:28,876 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:51:28,876 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:51:28,876 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:51:28,876 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:51:28,876 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:51:28,952 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1342021843, now seen corresponding path program 1 times [2021-07-14 21:51:28,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:28,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123946908] [2021-07-14 21:51:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:29,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:29,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123946908] [2021-07-14 21:51:29,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123946908] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:51:29,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:51:29,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:51:29,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089711094] [2021-07-14 21:51:29,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:51:29,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:29,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:51:29,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:51:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,135 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:29,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:29,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:51:29,165 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:29,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1262256245, now seen corresponding path program 1 times [2021-07-14 21:51:29,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:29,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808276385] [2021-07-14 21:51:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:29,195 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 21:51:29,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:29,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808276385] [2021-07-14 21:51:29,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808276385] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:51:29,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:51:29,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:51:29,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123158111] [2021-07-14 21:51:29,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:51:29,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:29,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:51:29,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:51:29,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,198 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:29,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:29,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:29,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:51:29,280 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:29,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1859250549, now seen corresponding path program 1 times [2021-07-14 21:51:29,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:29,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578625778] [2021-07-14 21:51:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:29,326 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 21:51:29,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:29,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578625778] [2021-07-14 21:51:29,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578625778] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:51:29,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:51:29,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:51:29,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980908779] [2021-07-14 21:51:29,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:51:29,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:29,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:51:29,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 21:51:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:29,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:29,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:29,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:29,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 21:51:29,359 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:29,360 INFO L82 PathProgramCache]: Analyzing trace with hash -102836375, now seen corresponding path program 1 times [2021-07-14 21:51:29,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:29,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180633919] [2021-07-14 21:51:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:29,531 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 21:51:29,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:29,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180633919] [2021-07-14 21:51:29,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180633919] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:29,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162654921] [2021-07-14 21:51:29,531 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 21:51:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:29,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 21:51:29,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:29,819 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:29,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-07-14 21:51:29,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 21:51:29,831 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:29,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:29,845 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:19 [2021-07-14 21:51:29,913 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 21:51:29,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162654921] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:29,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:29,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 21:51:29,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54566457] [2021-07-14 21:51:29,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 21:51:29,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:29,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 21:51:29,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-14 21:51:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:29,917 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:29,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 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 21:51:29,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:29,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:29,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:29,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:30,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:30,273 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:30,273 INFO L82 PathProgramCache]: Analyzing trace with hash -110962489, now seen corresponding path program 2 times [2021-07-14 21:51:30,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:30,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810690193] [2021-07-14 21:51:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:30,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:30,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810690193] [2021-07-14 21:51:30,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810690193] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:30,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177477842] [2021-07-14 21:51:30,330 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 21:51:30,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:51:30,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:30,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:51:30,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:30,458 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 21:51:30,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177477842] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:30,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:30,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:51:30,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700659761] [2021-07-14 21:51:30,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:51:30,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:30,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:51:30,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:51:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:30,460 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:30,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 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 21:51:30,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:30,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:30,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:30,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:30,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:30,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:51:30,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:30,853 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:30,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:30,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1992024937, now seen corresponding path program 1 times [2021-07-14 21:51:30,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:30,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458759087] [2021-07-14 21:51:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:31,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:31,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458759087] [2021-07-14 21:51:31,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458759087] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:31,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486250045] [2021-07-14 21:51:31,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:31,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 21:51:31,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:31,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:31,374 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:31,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-07-14 21:51:31,376 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:51:31,380 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:31,381 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:31,381 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:3 [2021-07-14 21:51:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:31,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486250045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:31,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:31,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 21:51:31,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796244734] [2021-07-14 21:51:31,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 21:51:31,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:31,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 21:51:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-07-14 21:51:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:31,400 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:31,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 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 21:51:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:51:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:51:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:32,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:32,210 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:32,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:32,211 INFO L82 PathProgramCache]: Analyzing trace with hash 662963655, now seen corresponding path program 2 times [2021-07-14 21:51:32,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:32,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613801006] [2021-07-14 21:51:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:32,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:32,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613801006] [2021-07-14 21:51:32,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613801006] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:32,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054677758] [2021-07-14 21:51:32,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:32,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:51:32,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:32,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:51:32,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:32,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054677758] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:32,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:32,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:51:32,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075561784] [2021-07-14 21:51:32,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:51:32,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:32,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:51:32,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:51:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:32,411 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:32,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 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 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:32,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:51:32,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:32,874 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:32,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1589260183, now seen corresponding path program 3 times [2021-07-14 21:51:32,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:32,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449689740] [2021-07-14 21:51:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:33,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:33,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449689740] [2021-07-14 21:51:33,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449689740] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:33,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130855689] [2021-07-14 21:51:33,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:33,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:51:33,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:33,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-14 21:51:33,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:33,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:33,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:33,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 29 [2021-07-14 21:51:33,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:51:33,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:33,661 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:33,661 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:3 [2021-07-14 21:51:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:33,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130855689] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:33,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:33,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 25 [2021-07-14 21:51:33,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850149052] [2021-07-14 21:51:33,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:51:33,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:33,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:51:33,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:51:33,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:33,686 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:33,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 25 states have internal predecessors, (52), 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 21:51:33,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:33,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:33,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:51:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:51:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:35,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:35,189 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:35,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1839623225, now seen corresponding path program 4 times [2021-07-14 21:51:35,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:35,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480299413] [2021-07-14 21:51:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:35,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:35,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480299413] [2021-07-14 21:51:35,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480299413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:35,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911455896] [2021-07-14 21:51:35,265 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:35,292 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:51:35,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:35,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:51:35,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:35,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911455896] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:35,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:35,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:51:35,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414030871] [2021-07-14 21:51:35,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:51:35,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:35,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:51:35,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:51:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:35,431 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:35,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:35,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:51:35,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:35,947 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:35,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1393566103, now seen corresponding path program 5 times [2021-07-14 21:51:35,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:35,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715963572] [2021-07-14 21:51:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:36,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:36,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715963572] [2021-07-14 21:51:36,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715963572] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:36,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33633536] [2021-07-14 21:51:36,225 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 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 21:51:36,254 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:51:36,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:36,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 21:51:36,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:36,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:36,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:36,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:36,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-07-14 21:51:36,711 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:51:36,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:36,719 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:36,719 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:3 [2021-07-14 21:51:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:36,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33633536] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:36,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:36,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 29 [2021-07-14 21:51:36,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245429755] [2021-07-14 21:51:36,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 21:51:36,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:36,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 21:51:36,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2021-07-14 21:51:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:36,738 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:36,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 29 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:51:36,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:51:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:38,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-14 21:51:38,425 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:38,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:38,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1651064121, now seen corresponding path program 6 times [2021-07-14 21:51:38,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:38,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350544398] [2021-07-14 21:51:38,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:38,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:38,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350544398] [2021-07-14 21:51:38,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350544398] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:38,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276668480] [2021-07-14 21:51:38,514 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:38,551 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:51:38,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:38,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:51:38,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:38,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276668480] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:38,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:38,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:51:38,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656531894] [2021-07-14 21:51:38,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:51:38,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:38,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:51:38,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:51:38,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:38,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:38,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:38,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:39,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:39,279 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:39,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:39,279 INFO L82 PathProgramCache]: Analyzing trace with hash -576893591, now seen corresponding path program 7 times [2021-07-14 21:51:39,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:39,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386629423] [2021-07-14 21:51:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:39,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:39,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386629423] [2021-07-14 21:51:39,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386629423] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:39,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271881785] [2021-07-14 21:51:39,601 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:51:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:39,647 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-14 21:51:39,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:40,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:40,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:40,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-07-14 21:51:40,553 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:51:40,557 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:40,558 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:40,558 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:3 [2021-07-14 21:51:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:40,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271881785] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:40,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:40,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:51:40,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369699807] [2021-07-14 21:51:40,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:51:40,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:51:40,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:51:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:40,578 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:40,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 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 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:40,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:47,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 21:51:47,840 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1654730041, now seen corresponding path program 8 times [2021-07-14 21:51:47,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:47,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102841654] [2021-07-14 21:51:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:47,947 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:47,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:47,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102841654] [2021-07-14 21:51:47,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102841654] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:47,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877960010] [2021-07-14 21:51:47,947 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 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 21:51:47,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:51:47,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:47,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:51:47,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:48,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877960010] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:48,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:48,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:51:48,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126508123] [2021-07-14 21:51:48,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:51:48,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:48,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:51:48,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:51:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:48,204 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:48,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 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 21:51:48,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:48,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:48,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:48,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:48,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:51:48,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 21:51:48,878 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:48,878 INFO L82 PathProgramCache]: Analyzing trace with hash 195124585, now seen corresponding path program 9 times [2021-07-14 21:51:48,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:48,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802698242] [2021-07-14 21:51:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:49,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:49,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802698242] [2021-07-14 21:51:49,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802698242] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:49,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035053316] [2021-07-14 21:51:49,477 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 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 21:51:49,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 21:51:49,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:49,510 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 61 conjunts are in the unsatisfiable core [2021-07-14 21:51:49,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:50,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:50,269 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:50,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 49 [2021-07-14 21:51:50,274 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-07-14 21:51:50,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:50,285 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:50,285 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:17 [2021-07-14 21:51:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:50,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035053316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:50,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:50,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 38 [2021-07-14 21:51:50,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519449239] [2021-07-14 21:51:50,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 21:51:50,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:50,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 21:51:50,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 21:51:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:50,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:50,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.0) internal successors, (76), 38 states have internal predecessors, (76), 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 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:50,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:50,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:50,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:51:50,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:52,538 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 21:51:52,978 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-07-14 21:51:53,320 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:51:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:51:54,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 21:51:54,248 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:51:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:51:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash 666848873, now seen corresponding path program 10 times [2021-07-14 21:51:54,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:51:54,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951926688] [2021-07-14 21:51:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:51:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:51:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:54,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:51:54,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951926688] [2021-07-14 21:51:54,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951926688] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:54,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898691410] [2021-07-14 21:51:54,932 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 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 21:51:54,977 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:51:54,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:51:54,978 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 67 conjunts are in the unsatisfiable core [2021-07-14 21:51:54,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:51:55,905 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:51:55,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:51:55,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 21 [2021-07-14 21:51:55,911 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:51:55,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:51:55,916 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:51:55,916 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:3 [2021-07-14 21:51:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:51:55,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898691410] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:51:55,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:51:55,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 40 [2021-07-14 21:51:55,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165597712] [2021-07-14 21:51:55,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 21:51:55,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:51:55,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 21:51:55,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1441, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 21:51:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:55,943 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:51:55,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 40 states have internal predecessors, (84), 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 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:51:55,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:51:59,215 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2021-07-14 21:51:59,385 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 83 [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:00,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-07-14 21:52:00,388 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:00,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1087741847, now seen corresponding path program 11 times [2021-07-14 21:52:00,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:00,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031705040] [2021-07-14 21:52:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:01,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:01,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031705040] [2021-07-14 21:52:01,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031705040] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:01,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699235629] [2021-07-14 21:52:01,161 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 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 21:52:01,196 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 21:52:01,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:52:01,198 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2021-07-14 21:52:01,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:02,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:02,383 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:02,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 35 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 31 [2021-07-14 21:52:02,385 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-07-14 21:52:02,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:02,397 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:02,397 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:15 [2021-07-14 21:52:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:02,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699235629] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:02,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:02,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 45 [2021-07-14 21:52:02,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156889876] [2021-07-14 21:52:02,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-14 21:52:02,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:02,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-14 21:52:02,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1775, Unknown=0, NotChecked=0, Total=1980 [2021-07-14 21:52:02,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:02,467 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:02,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.088888888888889) internal successors, (94), 45 states have internal predecessors, (94), 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 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:02,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:02,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:06,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:52:06,561 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:06,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2139476841, now seen corresponding path program 12 times [2021-07-14 21:52:06,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:06,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622232984] [2021-07-14 21:52:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 20 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:07,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:07,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622232984] [2021-07-14 21:52:07,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622232984] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:07,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546159334] [2021-07-14 21:52:07,537 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 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 21:52:07,579 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 21:52:07,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:52:07,580 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 85 conjunts are in the unsatisfiable core [2021-07-14 21:52:07,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:08,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:52:08,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:08,751 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:08,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 40 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 175 [2021-07-14 21:52:08,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 21:52:08,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:08,790 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:08,790 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:20 [2021-07-14 21:52:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:08,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546159334] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:08,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:08,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 50 [2021-07-14 21:52:08,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691017865] [2021-07-14 21:52:08,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-07-14 21:52:08,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:08,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-07-14 21:52:08,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2021-07-14 21:52:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:08,878 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:08,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 2.0) internal successors, (100), 50 states have internal predecessors, (100), 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 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:11,705 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2021-07-14 21:52:11,915 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2021-07-14 21:52:12,100 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2021-07-14 21:52:12,326 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2021-07-14 21:52:12,512 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2021-07-14 21:52:12,674 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:13,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-07-14 21:52:13,256 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:13,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:13,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1159403671, now seen corresponding path program 13 times [2021-07-14 21:52:13,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:13,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702917966] [2021-07-14 21:52:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 42 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:14,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:14,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702917966] [2021-07-14 21:52:14,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702917966] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:14,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823930818] [2021-07-14 21:52:14,304 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 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 21:52:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:14,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 88 conjunts are in the unsatisfiable core [2021-07-14 21:52:14,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:16,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:52:16,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:16,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 67 treesize of output 99 [2021-07-14 21:52:16,056 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:52:16,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:16,060 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:16,060 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:75, output treesize:3 [2021-07-14 21:52:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:16,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823930818] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:16,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:16,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 52 [2021-07-14 21:52:16,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844761196] [2021-07-14 21:52:16,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-07-14 21:52:16,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:16,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-07-14 21:52:16,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=2470, Unknown=0, NotChecked=0, Total=2652 [2021-07-14 21:52:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:16,090 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:16,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 52 states have internal predecessors, (108), 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 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:16,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:21,212 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 81 [2021-07-14 21:52:21,752 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 98 [2021-07-14 21:52:21,979 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2021-07-14 21:52:22,228 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 102 [2021-07-14 21:52:22,471 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-07-14 21:52:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:23,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:52:23,706 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:23,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:23,706 INFO L82 PathProgramCache]: Analyzing trace with hash -339026839, now seen corresponding path program 14 times [2021-07-14 21:52:23,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:23,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543222208] [2021-07-14 21:52:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 24 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:24,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:24,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543222208] [2021-07-14 21:52:24,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543222208] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:24,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604814105] [2021-07-14 21:52:24,894 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 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 21:52:24,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:52:24,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:52:24,932 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2021-07-14 21:52:24,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:26,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:52:26,873 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:26,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 73 treesize of output 109 [2021-07-14 21:52:26,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:52:26,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:26,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:26,890 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:81, output treesize:3 [2021-07-14 21:52:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:26,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604814105] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:26,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:26,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 56 [2021-07-14 21:52:26,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685659843] [2021-07-14 21:52:26,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-07-14 21:52:26,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:26,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-07-14 21:52:26,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2889, Unknown=0, NotChecked=0, Total=3080 [2021-07-14 21:52:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:26,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:26,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 2.0714285714285716) internal successors, (116), 56 states have internal predecessors, (116), 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 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:26,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:26,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:33,147 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 82 [2021-07-14 21:52:33,582 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 103 [2021-07-14 21:52:33,830 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 120 [2021-07-14 21:52:34,065 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-07-14 21:52:34,336 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2021-07-14 21:52:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:52:35,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-07-14 21:52:35,733 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:35,733 INFO L82 PathProgramCache]: Analyzing trace with hash 959115881, now seen corresponding path program 15 times [2021-07-14 21:52:35,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:35,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885282181] [2021-07-14 21:52:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 72 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:37,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:37,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885282181] [2021-07-14 21:52:37,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885282181] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:37,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414129597] [2021-07-14 21:52:37,109 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 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 21:52:37,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-07-14 21:52:37,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:52:37,154 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 109 conjunts are in the unsatisfiable core [2021-07-14 21:52:37,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:39,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:52:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:52:39,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:39,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 121 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 191 [2021-07-14 21:52:39,829 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:52:39,856 INFO L628 ElimStorePlain]: treesize reduction 7, result has 84.4 percent of original size [2021-07-14 21:52:39,860 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:39,860 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:32 [2021-07-14 21:52:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:40,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414129597] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:40,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:40,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 62 [2021-07-14 21:52:40,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951317208] [2021-07-14 21:52:40,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-07-14 21:52:40,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:40,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-07-14 21:52:40,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=3511, Unknown=0, NotChecked=0, Total=3782 [2021-07-14 21:52:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:40,017 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:40,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.0) internal successors, (124), 62 states have internal predecessors, (124), 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 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:40,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:52:40,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:45,086 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2021-07-14 21:52:45,762 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2021-07-14 21:52:46,278 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-07-14 21:52:46,609 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2021-07-14 21:52:46,934 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2021-07-14 21:52:47,250 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2021-07-14 21:52:47,818 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 104 [2021-07-14 21:52:48,146 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 123 [2021-07-14 21:52:48,502 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 108 [2021-07-14 21:52:49,202 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:52:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:52:50,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-07-14 21:52:50,209 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:52:50,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:52:50,209 INFO L82 PathProgramCache]: Analyzing trace with hash -93820567, now seen corresponding path program 16 times [2021-07-14 21:52:50,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:52:50,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558847416] [2021-07-14 21:52:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:52:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:52:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 72 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:51,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:52:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558847416] [2021-07-14 21:52:51,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558847416] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101229856] [2021-07-14 21:52:51,774 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:52:51,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:52:51,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:52:51,817 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 112 conjunts are in the unsatisfiable core [2021-07-14 21:52:51,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:52:54,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:52:54,592 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:54,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 66 disjoint index pairs (out of 91 index pairs), introduced 13 new quantified variables, introduced 24 case distinctions, treesize of input 85 treesize of output 129 [2021-07-14 21:52:54,607 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:52:54,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:52:54,612 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:52:54,612 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:93, output treesize:3 [2021-07-14 21:52:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:52:54,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101229856] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:52:54,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:52:54,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 64 [2021-07-14 21:52:54,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748680726] [2021-07-14 21:52:54,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-07-14 21:52:54,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:52:54,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-07-14 21:52:54,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=3778, Unknown=0, NotChecked=0, Total=4032 [2021-07-14 21:52:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:52:54,648 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:52:54,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.0625) internal successors, (132), 64 states have internal predecessors, (132), 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 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:52:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:52:54,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:52:54,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:52:54,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:52:54,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:53:03,016 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 96 [2021-07-14 21:53:03,287 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 92 [2021-07-14 21:53:03,823 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 113 [2021-07-14 21:53:04,178 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 134 [2021-07-14 21:53:04,463 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 117 [2021-07-14 21:53:04,787 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-07-14 21:53:05,043 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 105 [2021-07-14 21:53:05,241 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2021-07-14 21:53:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:53:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:53:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:53:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:53:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 21:53:06,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:53:06,496 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:53:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:53:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash 995524969, now seen corresponding path program 17 times [2021-07-14 21:53:06,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:53:06,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630993462] [2021-07-14 21:53:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:53:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:53:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 54 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:53:08,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:53:08,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630993462] [2021-07-14 21:53:08,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630993462] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:53:08,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434121353] [2021-07-14 21:53:08,237 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:53:08,287 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-07-14 21:53:08,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:53:08,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 120 conjunts are in the unsatisfiable core [2021-07-14 21:53:08,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:53:10,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:10,604 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:53:10,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 104 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 43 [2021-07-14 21:53:10,605 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-07-14 21:53:10,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:53:10,612 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:53:10,612 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:15 [2021-07-14 21:53:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:53:10,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434121353] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:53:10,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:53:10,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 34] total 68 [2021-07-14 21:53:10,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620289768] [2021-07-14 21:53:10,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-07-14 21:53:10,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:53:10,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-07-14 21:53:10,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=4286, Unknown=0, NotChecked=0, Total=4556 [2021-07-14 21:53:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:53:10,746 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:53:10,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.088235294117647) internal successors, (142), 68 states have internal predecessors, (142), 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 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:53:10,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:53:10,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 21:53:10,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:53:19,673 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 119 [2021-07-14 21:53:19,911 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 142 [2021-07-14 21:53:20,201 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2021-07-14 21:53:20,414 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 110 [2021-07-14 21:53:20,622 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-14 21:53:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-14 21:53:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:53:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-07-14 21:53:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:53:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 21:53:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-07-14 21:53:21,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable175 [2021-07-14 21:53:21,896 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:53:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:53:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1077443177, now seen corresponding path program 18 times [2021-07-14 21:53:21,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:53:21,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80124823] [2021-07-14 21:53:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:53:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:53:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 78 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:53:23,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:53:23,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80124823] [2021-07-14 21:53:23,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80124823] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:53:23,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187413728] [2021-07-14 21:53:23,874 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:53:23,926 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-07-14 21:53:23,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:53:23,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 129 conjunts are in the unsatisfiable core [2021-07-14 21:53:23,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:53:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:53:54,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:53:54,928 INFO L244 Elim1Store]: Index analysis took 205 ms [2021-07-14 21:53:57,336 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 617 [2021-07-14 21:53:57,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:53:57,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 161 disjoint index pairs (out of 325 index pairs), introduced 25 new quantified variables, introduced 143 case distinctions, treesize of input 135 treesize of output 1501 [2021-07-14 21:53:57,633 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 640 [2021-07-14 21:53:57,938 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 939 DAG size of output: 666 [2021-07-14 21:54:01,484 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 4497 DAG size of output: 2739 [2021-07-14 21:54:05,283 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 4517 DAG size of output: 2759 [2021-07-14 21:54:29,755 WARN L205 SmtUtils]: Spent 22.96 s on a formula simplification. DAG size of input: 20318 DAG size of output: 9843 [2021-07-14 21:54:56,121 WARN L205 SmtUtils]: Spent 24.98 s on a formula simplification. DAG size of input: 20346 DAG size of output: 9871 [2021-07-14 21:59:37,362 WARN L205 SmtUtils]: Spent 4.51 m on a formula simplification. DAG size of input: 115623 DAG size of output: 59189 [2021-07-14 22:04:24,617 WARN L205 SmtUtils]: Spent 4.65 m on a formula simplification. DAG size of input: 115643 DAG size of output: 59209 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown