/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/min-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:40:53,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:40:53,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:40:53,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:40:53,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:40:53,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:40:53,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:40:53,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:40:53,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:40:53,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:40:53,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:40:53,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:40:53,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:40:53,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:40:53,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:40:53,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:40:53,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:40:53,288 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 21:40:53,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:40:53,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:40:53,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:40:53,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:40:53,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:40:53,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:40:53,328 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:40:53,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:40:53,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:40:53,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:40:53,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:40:53,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:40:53,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:40:53,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:40:53,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:40:53,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:40:53,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:40:53,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:40:53,347 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:40:53,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:40:53,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:40:53,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:40:53,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:40:53,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:40:53,725 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:40:53,726 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:40:53,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun-alt.wvr.bpl [2021-07-14 21:40:53,727 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun-alt.wvr.bpl' [2021-07-14 21:40:53,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:40:53,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:40:53,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:40:53,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:40:53,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:40:53,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:40:53,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:40:53,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:40:53,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:40:53,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/1) ... [2021-07-14 21:40:53,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:40:53,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:40:53,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:40:53,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:40:53,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (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 21:40:53,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:40:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:40:53,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:40:53,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:40:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:40:53,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:40:53,879 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:40:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:40:53,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:40:53,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:40:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:40:53,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:40:53,881 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 21:40:54,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:40:54,118 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:40:54,119 INFO L202 PluginConnector]: Adding new model min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:40:54 BoogieIcfgContainer [2021-07-14 21:40:54,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:40:54,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:40:54,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:40:54,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:40:54,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:40:53" (1/2) ... [2021-07-14 21:40:54,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7652e1dc and model type min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:40:54, skipping insertion in model container [2021-07-14 21:40:54,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:40:54" (2/2) ... [2021-07-14 21:40:54,126 INFO L111 eAbstractionObserver]: Analyzing ICFG min-fun-alt.wvr.bpl [2021-07-14 21:40:54,147 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:40:54,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:40:54,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:40:54,148 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:40:54,219 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:40:54,253 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 21:40:54,318 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:40:54,318 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:40:54,319 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:40:54,320 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:40:54,320 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:40:54,320 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:40:54,320 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:40:54,320 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:40:54,414 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:54,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:54,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1342021843, now seen corresponding path program 1 times [2021-07-14 21:40:54,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:54,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905729114] [2021-07-14 21:40:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:54,588 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 21:40:54,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:54,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905729114] [2021-07-14 21:40:54,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905729114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:40:54,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:40:54,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:40:54,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490637742] [2021-07-14 21:40:54,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:40:54,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:54,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:40:54,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:40:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,609 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:54,611 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 21:40:54,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:54,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:40:54,630 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:54,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1262256245, now seen corresponding path program 1 times [2021-07-14 21:40:54,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:54,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727673933] [2021-07-14 21:40:54,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:54,668 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 21:40:54,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:54,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727673933] [2021-07-14 21:40:54,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727673933] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:40:54,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:40:54,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:40:54,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068428494] [2021-07-14 21:40:54,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:40:54,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:54,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:40:54,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:40:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,674 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:54,674 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 21:40:54,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:54,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:54,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:54,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:40:54,773 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:54,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:54,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1859250549, now seen corresponding path program 1 times [2021-07-14 21:40:54,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:54,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989965132] [2021-07-14 21:40:54,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:54,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:54,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989965132] [2021-07-14 21:40:54,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989965132] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:54,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367138833] [2021-07-14 21:40:54,849 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 21:40:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:54,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 21:40:54,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:55,023 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 21:40:55,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367138833] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:40:55,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-14 21:40:55,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-07-14 21:40:55,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375950386] [2021-07-14 21:40:55,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:40:55,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:55,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:40:55,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-14 21:40:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:55,025 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:55,025 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 21:40:55,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:55,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:55,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:55,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:55,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:55,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:55,287 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash -102836375, now seen corresponding path program 1 times [2021-07-14 21:40:55,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:55,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767635003] [2021-07-14 21:40:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:55,535 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 21:40:55,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:55,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767635003] [2021-07-14 21:40:55,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767635003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:55,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153810612] [2021-07-14 21:40:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 21:40:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:55,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 21:40:55,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:56,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:56,138 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 21 treesize of output 21 [2021-07-14 21:40:56,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:56,151 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:40:56,152 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 16 treesize of output 14 [2021-07-14 21:40:56,160 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:56,221 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:56,234 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:40:56,235 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 16 treesize of output 14 [2021-07-14 21:40:56,237 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:56,252 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:56,253 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 21:40:56,263 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:56,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:56,318 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:40:56,318 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:121, output treesize:71 [2021-07-14 21:40:56,447 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 21:40:56,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153810612] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:56,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:56,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 21:40:56,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680677685] [2021-07-14 21:40:56,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:40:56,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:56,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:40:56,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:40:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:56,451 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:56,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:56,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:56,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:56,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:56,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:57,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:57,009 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash -110962489, now seen corresponding path program 2 times [2021-07-14 21:40:57,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:57,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248319469] [2021-07-14 21:40:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:57,093 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 21:40:57,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:57,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248319469] [2021-07-14 21:40:57,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248319469] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:57,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213579817] [2021-07-14 21:40:57,094 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 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 21:40:57,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:40:57,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:40:57,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:40:57,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:57,241 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 21:40:57,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213579817] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:57,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:57,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:40:57,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460660625] [2021-07-14 21:40:57,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:40:57,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:57,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:40:57,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:40:57,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:57,243 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:57,243 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 21:40:57,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:57,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:57,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:57,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:57,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:40:57,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:57,651 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:57,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:57,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1992024937, now seen corresponding path program 1 times [2021-07-14 21:40:57,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:57,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120054051] [2021-07-14 21:40:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:58,141 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-07-14 21:40:58,325 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-07-14 21:40:58,440 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 21:40:58,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:58,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120054051] [2021-07-14 21:40:58,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120054051] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:58,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288572032] [2021-07-14 21:40:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 21:40:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:58,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 21:40:58,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:59,210 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-07-14 21:40:59,510 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2021-07-14 21:40:59,661 INFO L446 ElimStorePlain]: Different costs {1=[A], 2=[v_prenex_14, v_prenex_13]} [2021-07-14 21:40:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:59,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:40:59,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:59,792 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-07-14 21:40:59,793 INFO L628 ElimStorePlain]: treesize reduction 50, result has 69.7 percent of original size [2021-07-14 21:40:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:59,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-07-14 21:40:59,802 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:59,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:59,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:59,809 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 30 treesize of output 16 [2021-07-14 21:40:59,811 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:59,879 INFO L628 ElimStorePlain]: treesize reduction 15, result has 81.5 percent of original size [2021-07-14 21:40:59,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:59,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:59,885 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 23 treesize of output 13 [2021-07-14 21:40:59,886 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:59,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:59,919 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:40:59,919 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:179, output treesize:32 [2021-07-14 21:40:59,980 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 21:40:59,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288572032] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:59,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:59,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:40:59,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294556563] [2021-07-14 21:40:59,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:40:59,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:59,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:40:59,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:40:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:59,982 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:59,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:59,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:59,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:59,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:59,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:59,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:40:59,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:00,876 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-07-14 21:41:01,009 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-07-14 21:41:01,178 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-07-14 21:41:01,351 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-07-14 21:41:01,818 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 21:41:02,098 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 67 [2021-07-14 21:41:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:02,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-14 21:41:02,439 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:02,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash 662963655, now seen corresponding path program 2 times [2021-07-14 21:41:02,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:02,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477011607] [2021-07-14 21:41:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:02,507 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 21:41:02,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:02,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477011607] [2021-07-14 21:41:02,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477011607] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:02,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693437718] [2021-07-14 21:41:02,507 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 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 21:41:02,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:41:02,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:02,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:41:02,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:02,664 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 21:41:02,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693437718] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:02,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:02,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:41:02,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478118368] [2021-07-14 21:41:02,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:41:02,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:02,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:41:02,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:41:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:02,665 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:02,666 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 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:03,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:03,153 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1589260183, now seen corresponding path program 3 times [2021-07-14 21:41:03,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:03,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482141548] [2021-07-14 21:41:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:03,720 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2021-07-14 21:41:03,887 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-07-14 21:41:04,127 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 21:41:04,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:04,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482141548] [2021-07-14 21:41:04,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482141548] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:04,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383695282] [2021-07-14 21:41:04,128 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 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 21:41:04,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:41:04,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:04,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-14 21:41:04,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:04,730 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-07-14 21:41:04,979 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-07-14 21:41:05,621 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-07-14 21:41:06,508 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 108 [2021-07-14 21:41:07,258 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 55 [2021-07-14 21:41:07,346 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_49], 1=[A], 5=[v_prenex_47, v_prenex_48]} [2021-07-14 21:41:07,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:41:07,353 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:07,407 INFO L628 ElimStorePlain]: treesize reduction 180, result has 13.9 percent of original size [2021-07-14 21:41:07,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:07,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:41:07,412 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:07,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:07,419 INFO L518 ElimStorePlain]: Eliminatee v_prenex_47 vanished before elimination [2021-07-14 21:41:07,419 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-07-14 21:41:07,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 21:41:07,419 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:223, output treesize:15 [2021-07-14 21:41:07,470 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 21:41:07,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383695282] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:07,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:07,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-07-14 21:41:07,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081352774] [2021-07-14 21:41:07,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-14 21:41:07,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:07,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-14 21:41:07,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-07-14 21:41:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:07,473 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:07,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 26 states have internal predecessors, (57), 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 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:07,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:08,239 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-14 21:41:08,428 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-07-14 21:41:08,673 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-14 21:41:09,041 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 84 [2021-07-14 21:41:09,405 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 119 [2021-07-14 21:41:09,784 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 96 [2021-07-14 21:41:10,173 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 97 [2021-07-14 21:41:11,106 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 169 [2021-07-14 21:41:11,543 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 129 [2021-07-14 21:41:12,533 WARN L205 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 148 [2021-07-14 21:41:14,027 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 226 DAG size of output: 188 [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:14,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-07-14 21:41:14,373 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:14,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1839623225, now seen corresponding path program 4 times [2021-07-14 21:41:14,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:14,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055012329] [2021-07-14 21:41:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:14,447 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 21:41:14,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:14,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055012329] [2021-07-14 21:41:14,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055012329] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:14,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212404316] [2021-07-14 21:41:14,448 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 21:41:14,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:41:14,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:14,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:41:14,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:14,629 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 21:41:14,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212404316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:14,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:14,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:41:14,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842772992] [2021-07-14 21:41:14,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:41:14,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:41:14,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:41:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:14,633 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:14,633 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 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:14,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:41:15,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-07-14 21:41:15,187 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:15,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1393566103, now seen corresponding path program 5 times [2021-07-14 21:41:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:15,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790364071] [2021-07-14 21:41:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:15,683 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2021-07-14 21:41:15,802 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 26 [2021-07-14 21:41:15,931 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2021-07-14 21:41:16,109 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2021-07-14 21:41:16,344 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-07-14 21:41:16,568 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-07-14 21:41:16,785 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-07-14 21:41:16,979 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2021-07-14 21:41:17,136 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 21:41:17,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:17,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790364071] [2021-07-14 21:41:17,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790364071] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:17,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200008628] [2021-07-14 21:41:17,137 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 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 21:41:17,181 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:41:17,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:17,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-14 21:41:17,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:18,563 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-07-14 21:41:19,604 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-07-14 21:41:23,455 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 379 DAG size of output: 277 [2021-07-14 21:41:27,202 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 387 DAG size of output: 284 [2021-07-14 21:41:29,265 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 353 DAG size of output: 197 [2021-07-14 21:41:29,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:29,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:29,600 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 44 treesize of output 22 [2021-07-14 21:41:29,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:29,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:29,628 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 44 treesize of output 22 [2021-07-14 21:41:29,630 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:31,144 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 320 DAG size of output: 282 [2021-07-14 21:41:31,145 INFO L628 ElimStorePlain]: treesize reduction 420, result has 63.4 percent of original size [2021-07-14 21:41:31,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:41:31,175 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:31,578 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2021-07-14 21:41:31,579 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:31,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2021-07-14 21:41:31,602 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:31,947 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-07-14 21:41:31,948 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:31,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:41:31,975 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:31,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:31,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:31,990 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 40 treesize of output 22 [2021-07-14 21:41:31,995 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:32,556 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 249 [2021-07-14 21:41:32,557 INFO L628 ElimStorePlain]: treesize reduction 20, result has 96.8 percent of original size [2021-07-14 21:41:32,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,572 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 35 treesize of output 19 [2021-07-14 21:41:32,574 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:32,832 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:41:32,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:32,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:32,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:41:32,860 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:33,131 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-07-14 21:41:33,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,150 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 37 treesize of output 19 [2021-07-14 21:41:33,151 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:33,394 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-07-14 21:41:33,395 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:33,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:33,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,410 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 35 treesize of output 19 [2021-07-14 21:41:33,411 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:33,635 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 21:41:33,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:33,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,663 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 33 treesize of output 19 [2021-07-14 21:41:33,665 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:33,867 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-07-14 21:41:33,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:33,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:41:33,881 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,071 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 21:41:34,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:34,091 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 37 treesize of output 19 [2021-07-14 21:41:34,092 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,270 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-14 21:41:34,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2021-07-14 21:41:34,303 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,473 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-07-14 21:41:34,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2021-07-14 21:41:34,494 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,644 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-07-14 21:41:34,644 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:34,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,655 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 37 treesize of output 19 [2021-07-14 21:41:34,657 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,794 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-07-14 21:41:34,795 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:34,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2021-07-14 21:41:34,806 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,932 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-14 21:41:34,932 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,942 INFO L550 ElimStorePlain]: Start of recursive call 1: 30 dim-0 vars, 15 dim-1 vars, End of recursive call: and 7 xjuncts. [2021-07-14 21:41:34,942 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 45 variables, input treesize:1239, output treesize:59 [2021-07-14 21:41:35,010 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 21:41:35,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200008628] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:35,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:35,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2021-07-14 21:41:35,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479659777] [2021-07-14 21:41:35,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:41:35,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:41:35,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:41:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:35,012 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:35,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 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 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:35,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:41:35,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:36,027 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2021-07-14 21:41:36,233 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2021-07-14 21:41:36,544 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2021-07-14 21:41:36,846 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101 [2021-07-14 21:41:37,662 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 58 [2021-07-14 21:41:38,537 WARN L205 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 63 [2021-07-14 21:41:40,368 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 143 DAG size of output: 130 [2021-07-14 21:41:41,592 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 437 DAG size of output: 97 [2021-07-14 21:41:44,962 WARN L205 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 481 DAG size of output: 334 [2021-07-14 21:41:46,889 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 159 DAG size of output: 130 [2021-07-14 21:41:47,384 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-07-14 21:41:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:41:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:41:47,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:47,657 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1651064121, now seen corresponding path program 6 times [2021-07-14 21:41:47,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:47,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210740817] [2021-07-14 21:41:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:47,766 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 21:41:47,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:47,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210740817] [2021-07-14 21:41:47,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210740817] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:47,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290594801] [2021-07-14 21:41:47,767 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 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 21:41:47,807 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:41:47,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:47,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:41:47,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:48,002 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 21:41:48,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290594801] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:48,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:48,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:41:48,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369495690] [2021-07-14 21:41:48,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:41:48,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:48,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:41:48,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:41:48,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:48,004 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:48,004 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 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:41:48,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:41:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:41:48,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133 [2021-07-14 21:41:48,671 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:48,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash -576893591, now seen corresponding path program 7 times [2021-07-14 21:41:48,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:48,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198887376] [2021-07-14 21:41:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:49,696 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2021-07-14 21:41:49,936 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 143 [2021-07-14 21:41:50,184 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 58 [2021-07-14 21:41:50,627 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 68 [2021-07-14 21:41:50,733 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 190 [2021-07-14 21:41:51,345 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 109 [2021-07-14 21:41:52,052 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 108 [2021-07-14 21:41:52,353 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 79 [2021-07-14 21:41:52,653 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 74 [2021-07-14 21:41:52,801 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 47 [2021-07-14 21:41:52,950 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 31 [2021-07-14 21:41:53,049 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 21:41:53,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:53,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198887376] [2021-07-14 21:41:53,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198887376] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:53,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223184936] [2021-07-14 21:41:53,049 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 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 21:41:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:53,097 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-14 21:41:53,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:53,635 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 21:41:54,148 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-07-14 21:41:55,300 WARN L205 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-07-14 21:41:56,429 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2021-07-14 21:42:00,003 WARN L205 SmtUtils]: Spent 2.74 s on a formula simplification that was a NOOP. DAG size: 417 [2021-07-14 21:42:05,224 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 875 DAG size of output: 363 [2021-07-14 21:42:08,611 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 444 DAG size of output: 159 [2021-07-14 21:42:09,840 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 92 [2021-07-14 21:42:10,453 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 62 [2021-07-14 21:42:10,522 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_289], 9=[A, v_prenex_290]} [2021-07-14 21:42:10,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:42:10,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:10,569 INFO L628 ElimStorePlain]: treesize reduction 236, result has 6.0 percent of original size [2021-07-14 21:42:10,569 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-07-14 21:42:10,569 INFO L518 ElimStorePlain]: Eliminatee v_prenex_290 vanished before elimination [2021-07-14 21:42:10,570 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 21:42:10,570 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:275, output treesize:15 [2021-07-14 21:42:10,649 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 21:42:10,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223184936] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:10,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:10,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:42:10,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511843311] [2021-07-14 21:42:10,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:42:10,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:10,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:42:10,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:42:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:10,651 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:10,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 33 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:11,728 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-07-14 21:42:12,053 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2021-07-14 21:42:12,335 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2021-07-14 21:42:12,789 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 72 [2021-07-14 21:42:13,252 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 79 [2021-07-14 21:42:14,146 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 127 [2021-07-14 21:42:15,135 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 144 [2021-07-14 21:42:16,079 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 138 [2021-07-14 21:42:18,071 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 299 DAG size of output: 220 [2021-07-14 21:42:20,210 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 435 DAG size of output: 357 [2021-07-14 21:42:23,309 WARN L205 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 329 DAG size of output: 234 [2021-07-14 21:42:25,391 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 311 DAG size of output: 227 [2021-07-14 21:42:31,432 WARN L205 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 472 DAG size of output: 425 [2021-07-14 21:42:33,719 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 447 DAG size of output: 361 [2021-07-14 21:42:39,202 WARN L205 SmtUtils]: Spent 5.00 s on a formula simplification. DAG size of input: 737 DAG size of output: 399 [2021-07-14 21:42:45,655 WARN L205 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 514 DAG size of output: 428 [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:46,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-07-14 21:42:46,125 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:46,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:46,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1654730041, now seen corresponding path program 8 times [2021-07-14 21:42:46,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:46,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305460417] [2021-07-14 21:42:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:46,225 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 21:42:46,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:42:46,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305460417] [2021-07-14 21:42:46,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305460417] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:46,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640832385] [2021-07-14 21:42:46,226 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 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 21:42:46,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:42:46,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:42:46,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:42:46,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:42:46,484 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 21:42:46,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640832385] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:46,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:46,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:42:46,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471938916] [2021-07-14 21:42:46,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:42:46,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:46,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:42:46,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:42:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:46,487 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:46,487 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 21:42:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:46,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:42:47,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:47,285 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:47,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:47,285 INFO L82 PathProgramCache]: Analyzing trace with hash 195124585, now seen corresponding path program 9 times [2021-07-14 21:42:47,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:47,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408453237] [2021-07-14 21:42:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:50,697 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2021-07-14 21:42:50,879 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 31 [2021-07-14 21:42:51,058 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 76 [2021-07-14 21:42:51,219 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 25 [2021-07-14 21:42:51,399 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 135 [2021-07-14 21:42:51,642 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 35 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown