/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-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 22:55:36,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 22:55:36,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 22:55:36,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 22:55:36,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 22:55:36,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 22:55:36,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 22:55:36,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 22:55:36,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 22:55:36,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 22:55:36,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 22:55:36,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 22:55:36,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 22:55:36,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 22:55:36,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 22:55:36,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 22:55:36,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 22:55:36,277 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-Random521.epf [2021-07-14 22:55:36,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 22:55:36,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 22:55:36,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 22:55:36,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 22:55:36,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 22:55:36,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 22:55:36,302 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 22:55:36,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 22:55:36,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 22:55:36,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 22:55:36,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 22:55:36,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 22:55:36,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 22:55:36,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 22:55:36,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 22:55:36,306 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 22:55:36,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 22:55:36,306 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 22:55:36,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 22:55:36,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 22:55:36,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 22:55:36,581 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 22:55:36,583 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 22:55:36,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-07-14 22:55:36,583 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-07-14 22:55:36,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 22:55:36,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 22:55:36,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 22:55:36,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 22:55:36,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 22:55:36,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 22:55:36,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 22:55:36,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 22:55:36,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 22:55:36,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/1) ... [2021-07-14 22:55:36,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 22:55:36,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 22:55:36,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 22:55:36,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 22:55:36,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (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 22:55:36,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 22:55:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 22:55:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 22:55:36,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 22:55:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 22:55:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 22:55:36,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 22:55:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 22:55:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 22:55:36,699 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 22:55:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 22:55:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 22:55:36,700 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 22:55:36,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 22:55:36,837 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 22:55:36,838 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:55:36 BoogieIcfgContainer [2021-07-14 22:55:36,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 22:55:36,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 22:55:36,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 22:55:36,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 22:55:36,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:55:36" (1/2) ... [2021-07-14 22:55:36,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97ffdb and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 10:55:36, skipping insertion in model container [2021-07-14 22:55:36,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:55:36" (2/2) ... [2021-07-14 22:55:36,843 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-07-14 22:55:36,847 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 22:55:36,848 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 22:55:36,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 22:55:36,848 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 22:55:36,874 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 22:55:36,892 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 22:55:36,937 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 22:55:36,937 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 22:55:36,937 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 22:55:36,937 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 22:55:36,937 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 22:55:36,937 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 22:55:36,938 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 22:55:36,938 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 22:55:36,990 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:36,994 INFO L82 PathProgramCache]: Analyzing trace with hash -837472812, now seen corresponding path program 1 times [2021-07-14 22:55:36,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:37,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726383940] [2021-07-14 22:55:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:37,114 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 22:55:37,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:37,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726383940] [2021-07-14 22:55:37,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726383940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 22:55:37,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 22:55:37,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 22:55:37,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731250842] [2021-07-14 22:55:37,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 22:55:37,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:37,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 22:55:37,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 22:55:37,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,169 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:37,171 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 22:55:37,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:37,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 22:55:37,210 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:37,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1578051571, now seen corresponding path program 1 times [2021-07-14 22:55:37,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:37,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678944222] [2021-07-14 22:55:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:37,300 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 22:55:37,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:37,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678944222] [2021-07-14 22:55:37,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678944222] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 22:55:37,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 22:55:37,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 22:55:37,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450125023] [2021-07-14 22:55:37,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 22:55:37,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:37,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 22:55:37,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 22:55:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,307 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:37,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:37,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:37,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:37,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 22:55:37,386 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:37,386 INFO L82 PathProgramCache]: Analyzing trace with hash 482321657, now seen corresponding path program 1 times [2021-07-14 22:55:37,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:37,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739240886] [2021-07-14 22:55:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:37,427 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 22:55:37,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:37,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739240886] [2021-07-14 22:55:37,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739240886] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 22:55:37,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 22:55:37,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 22:55:37,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321462463] [2021-07-14 22:55:37,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 22:55:37,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 22:55:37,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 22:55:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,429 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:37,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:37,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:37,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:37,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:37,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 22:55:37,456 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:37,457 INFO L82 PathProgramCache]: Analyzing trace with hash -850517330, now seen corresponding path program 1 times [2021-07-14 22:55:37,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:37,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957390522] [2021-07-14 22:55:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:37,751 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 22:55:37,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:37,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957390522] [2021-07-14 22:55:37,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957390522] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:37,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889665833] [2021-07-14 22:55:37,753 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 22:55:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:37,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 22:55:37,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:37,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:38,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-07-14 22:55:38,008 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:38,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:38,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:38,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-07-14 22:55:38,032 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:38,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:38,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-07-14 22:55:38,048 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:55:38,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:38,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:55:38,060 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-14 22:55:38,122 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 22:55:38,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889665833] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:38,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:38,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-07-14 22:55:38,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083924140] [2021-07-14 22:55:38,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 22:55:38,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:38,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 22:55:38,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-07-14 22:55:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:38,125 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:38,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:38,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:38,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:38,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:38,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:38,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:38,545 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:38,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:38,546 INFO L82 PathProgramCache]: Analyzing trace with hash -484127527, now seen corresponding path program 2 times [2021-07-14 22:55:38,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:38,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073531251] [2021-07-14 22:55:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:38,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:38,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073531251] [2021-07-14 22:55:38,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073531251] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:38,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813530410] [2021-07-14 22:55:38,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:38,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:55:38,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:38,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 22:55:38,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:38,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813530410] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:38,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:38,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 22:55:38,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236030644] [2021-07-14 22:55:38,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 22:55:38,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:38,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 22:55:38,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-07-14 22:55:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:38,771 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:38,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 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 22:55:38,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:38,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:38,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:38,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:38,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:39,132 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:39,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:39,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1749459990, now seen corresponding path program 1 times [2021-07-14 22:55:39,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:39,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651088338] [2021-07-14 22:55:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 22:55:39,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:39,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651088338] [2021-07-14 22:55:39,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651088338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:39,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534054981] [2021-07-14 22:55:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:39,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 22:55:39,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 22:55:39,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534054981] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:39,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:39,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 22:55:39,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583286118] [2021-07-14 22:55:39,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 22:55:39,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:39,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 22:55:39,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-14 22:55:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:39,331 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:39,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:39,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:39,646 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:39,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1622545901, now seen corresponding path program 3 times [2021-07-14 22:55:39,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:39,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333681848] [2021-07-14 22:55:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:39,691 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 22:55:39,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:39,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333681848] [2021-07-14 22:55:39,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333681848] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:39,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740005053] [2021-07-14 22:55:39,691 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 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 22:55:39,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 22:55:39,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:39,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 22:55:39,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:39,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740005053] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:39,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:39,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 22:55:39,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784848487] [2021-07-14 22:55:39,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 22:55:39,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:39,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 22:55:39,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-14 22:55:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:39,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:39,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:40,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 22:55:40,128 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:40,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:40,129 INFO L82 PathProgramCache]: Analyzing trace with hash -437416108, now seen corresponding path program 4 times [2021-07-14 22:55:40,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:40,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760201097] [2021-07-14 22:55:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:40,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:40,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760201097] [2021-07-14 22:55:40,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760201097] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:40,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541904658] [2021-07-14 22:55:40,664 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 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 22:55:40,721 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:55:40,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:40,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 22:55:40,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:40,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:40,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:40,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:40,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:40,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 37 [2021-07-14 22:55:40,974 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:40,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:40,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:40,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:40,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:40,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:40,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-07-14 22:55:41,007 INFO L550 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:41,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:41,019 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:41,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 23 [2021-07-14 22:55:41,024 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:55:41,033 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:41,039 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:55:41,039 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:53, output treesize:3 [2021-07-14 22:55:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:41,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541904658] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:41,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:41,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2021-07-14 22:55:41,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477559960] [2021-07-14 22:55:41,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 22:55:41,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:41,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 22:55:41,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2021-07-14 22:55:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:41,067 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:41,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 23 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:41,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:41,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:42,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:42,424 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:42,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:42,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1133074035, now seen corresponding path program 5 times [2021-07-14 22:55:42,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:42,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722896519] [2021-07-14 22:55:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:42,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:42,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722896519] [2021-07-14 22:55:42,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722896519] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:42,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843609347] [2021-07-14 22:55:42,498 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 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 22:55:42,529 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 22:55:42,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:42,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 22:55:42,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:42,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843609347] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:42,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:42,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-07-14 22:55:42,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833024494] [2021-07-14 22:55:42,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 22:55:42,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:42,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 22:55:42,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-07-14 22:55:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:42,641 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:42,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 16 states have internal predecessors, (55), 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 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:42,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:43,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:43,103 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:43,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:43,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1702748571, now seen corresponding path program 2 times [2021-07-14 22:55:43,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:43,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375399842] [2021-07-14 22:55:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:43,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:43,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375399842] [2021-07-14 22:55:43,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375399842] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:43,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356461182] [2021-07-14 22:55:43,483 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 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 22:55:43,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:55:43,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:43,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 22:55:43,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:44,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:44,384 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 51 [2021-07-14 22:55:44,495 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:44,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:44,529 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 43 [2021-07-14 22:55:44,604 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:44,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 47 [2021-07-14 22:55:44,671 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 22:55:44,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:44,800 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:55:44,800 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:165 [2021-07-14 22:55:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:45,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356461182] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:45,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:45,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-07-14 22:55:45,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821769948] [2021-07-14 22:55:45,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 22:55:45,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:45,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 22:55:45,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-07-14 22:55:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:45,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:45,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:45,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:47,412 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-07-14 22:55:48,759 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-07-14 22:55:48,956 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-07-14 22:55:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-14 22:55:49,577 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:49,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1753341502, now seen corresponding path program 3 times [2021-07-14 22:55:49,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:49,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786972692] [2021-07-14 22:55:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:49,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:49,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786972692] [2021-07-14 22:55:49,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786972692] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:49,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547770466] [2021-07-14 22:55:49,632 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 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 22:55:49,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 22:55:49,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:49,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 22:55:49,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:49,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547770466] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:49,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:49,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-07-14 22:55:49,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17530239] [2021-07-14 22:55:49,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 22:55:49,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:49,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 22:55:49,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-07-14 22:55:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:49,749 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:49,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 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 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:49,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:50,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:50,166 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:50,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:50,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1276293331, now seen corresponding path program 4 times [2021-07-14 22:55:50,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:50,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173196194] [2021-07-14 22:55:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 22:55:50,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:50,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173196194] [2021-07-14 22:55:50,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173196194] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:50,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141845728] [2021-07-14 22:55:50,216 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 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 22:55:50,245 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:55:50,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:50,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 22:55:50,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 22:55:50,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141845728] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:50,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:50,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 22:55:50,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682030513] [2021-07-14 22:55:50,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 22:55:50,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:50,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 22:55:50,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 22:55:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:50,318 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:50,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:55:50,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:50,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:55:50,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 22:55:50,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:50,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:53,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:53,789 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:53,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:53,789 INFO L82 PathProgramCache]: Analyzing trace with hash -426936583, now seen corresponding path program 6 times [2021-07-14 22:55:53,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:53,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130123944] [2021-07-14 22:55:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:53,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:53,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130123944] [2021-07-14 22:55:53,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130123944] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:53,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823341497] [2021-07-14 22:55:53,851 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 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 22:55:53,878 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 22:55:53,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:53,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 22:55:53,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:53,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823341497] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:53,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:53,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-07-14 22:55:53,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297129384] [2021-07-14 22:55:53,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 22:55:53,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:53,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 22:55:53,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-07-14 22:55:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:53,988 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:53,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:53,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:54,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-07-14 22:55:54,398 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:54,398 INFO L82 PathProgramCache]: Analyzing trace with hash -204009298, now seen corresponding path program 7 times [2021-07-14 22:55:54,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:54,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794893767] [2021-07-14 22:55:54,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:55,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:55,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794893767] [2021-07-14 22:55:55,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794893767] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:55,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407557508] [2021-07-14 22:55:55,222 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 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 22:55:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:55,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 22:55:55,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:55,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2021-07-14 22:55:55,830 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:55,837 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:55,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:55:55,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:55:55,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-07-14 22:55:55,846 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:55:55,852 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:55,867 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:55:55,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-07-14 22:55:55,877 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:55:55,909 INFO L628 ElimStorePlain]: treesize reduction 56, result has 37.8 percent of original size [2021-07-14 22:55:55,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:55:55,911 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:3 [2021-07-14 22:55:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:55,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407557508] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:55,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:55,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 31 [2021-07-14 22:55:55,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636601421] [2021-07-14 22:55:55,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 22:55:55,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:55,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 22:55:55,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2021-07-14 22:55:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:55,946 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:55,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.0) internal successors, (64), 31 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:55,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:55,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:55,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:55,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:55,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:55,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:55:58,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-07-14 22:55:58,272 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:58,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:58,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1003298521, now seen corresponding path program 8 times [2021-07-14 22:55:58,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:58,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084219751] [2021-07-14 22:55:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:58,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:58,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084219751] [2021-07-14 22:55:58,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084219751] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:58,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408780378] [2021-07-14 22:55:58,354 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:58,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:55:58,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:58,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 22:55:58,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:58,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408780378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:58,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:58,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-14 22:55:58,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352427099] [2021-07-14 22:55:58,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 22:55:58,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:58,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 22:55:58,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2021-07-14 22:55:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:58,544 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:58,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 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 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:55:58,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:55:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-07-14 22:55:59,177 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:59,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:59,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1692269046, now seen corresponding path program 5 times [2021-07-14 22:55:59,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:59,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966998508] [2021-07-14 22:55:59,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:55:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:59,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:55:59,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966998508] [2021-07-14 22:55:59,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966998508] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:59,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63712463] [2021-07-14 22:55:59,247 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:59,309 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 22:55:59,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:55:59,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 22:55:59,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:55:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:55:59,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63712463] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:55:59,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:55:59,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 22:55:59,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416901480] [2021-07-14 22:55:59,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 22:55:59,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:55:59,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 22:55:59,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-07-14 22:55:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:59,417 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:55:59,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:59,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:59,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:55:59,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:55:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:55:59,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:55:59,905 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:55:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:55:59,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1204542461, now seen corresponding path program 6 times [2021-07-14 22:55:59,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:55:59,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262687827] [2021-07-14 22:55:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:55:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:56:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:56:00,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:56:00,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262687827] [2021-07-14 22:56:00,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262687827] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:56:00,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998924045] [2021-07-14 22:56:00,483 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:56:00,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 22:56:00,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:56:00,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-14 22:56:00,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:56:08,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:56:08,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:56:08,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-07-14 22:56:08,797 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:56:08,808 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:56:08,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:56:08,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:56:08,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:56:08,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-07-14 22:56:08,817 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:56:08,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:56:08,844 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:56:08,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-07-14 22:56:08,853 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:56:08,900 INFO L628 ElimStorePlain]: treesize reduction 56, result has 44.0 percent of original size [2021-07-14 22:56:08,902 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:56:08,902 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:77, output treesize:10 [2021-07-14 22:56:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:56:08,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998924045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:56:08,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:56:08,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 22:56:08,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218002342] [2021-07-14 22:56:08,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 22:56:08,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:56:08,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 22:56:08,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=953, Unknown=5, NotChecked=0, Total=1056 [2021-07-14 22:56:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:56:08,968 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:56:08,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 33 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:56:08,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:56:08,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:56:08,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:56:08,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:56:08,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:56:08,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:57:11,880 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-07-14 22:57:12,845 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-07-14 22:57:14,463 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:57:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:57:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:57:14,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-07-14 22:57:14,747 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:57:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:57:14,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1338268970, now seen corresponding path program 7 times [2021-07-14 22:57:14,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:57:14,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351495240] [2021-07-14 22:57:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:57:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:57:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:57:14,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:57:14,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351495240] [2021-07-14 22:57:14,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351495240] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:57:14,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876971043] [2021-07-14 22:57:14,811 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:57:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:57:14,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 22:57:14,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:57:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:57:14,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876971043] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:57:14,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:57:14,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2021-07-14 22:57:14,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143526385] [2021-07-14 22:57:14,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 22:57:14,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:57:14,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 22:57:14,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-07-14 22:57:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:57:14,940 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:57:14,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 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 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:14,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:14,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:57:14,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:57:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:57:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:57:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:57:15,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:57:15,543 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:57:15,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:57:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash -60790002, now seen corresponding path program 8 times [2021-07-14 22:57:15,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:57:15,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526592394] [2021-07-14 22:57:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:57:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:57:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:57:15,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:57:15,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526592394] [2021-07-14 22:57:15,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526592394] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:57:15,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887566613] [2021-07-14 22:57:15,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:57:15,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:57:15,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:57:15,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 22:57:15,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:57:24,058 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-07-14 22:57:24,830 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-07-14 22:57:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:57:24,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:57:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:57:24,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-07-14 22:57:24,895 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:57:24,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:57:24,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:57:24,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:57:24,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:57:24,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-07-14 22:57:24,910 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 22:57:24,918 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:57:24,935 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:57:24,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-07-14 22:57:24,945 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:57:24,983 INFO L628 ElimStorePlain]: treesize reduction 56, result has 39.8 percent of original size [2021-07-14 22:57:24,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:57:24,985 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-07-14 22:57:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:57:25,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887566613] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:57:25,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:57:25,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-14 22:57:25,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763897243] [2021-07-14 22:57:25,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 22:57:25,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:57:25,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 22:57:25,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=736, Unknown=5, NotChecked=0, Total=870 [2021-07-14 22:57:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:57:25,008 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:57:25,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:57:25,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:57:25,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:58:04,954 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2021-07-14 22:59:03,820 WARN L205 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-07-14 22:59:04,386 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-07-14 22:59:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:05,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-07-14 22:59:05,015 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1548146567, now seen corresponding path program 9 times [2021-07-14 22:59:05,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:05,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736253071] [2021-07-14 22:59:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:05,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:05,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736253071] [2021-07-14 22:59:05,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736253071] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:05,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115967775] [2021-07-14 22:59:05,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:05,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 22:59:05,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:05,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 22:59:05,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:05,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115967775] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:05,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:05,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-07-14 22:59:05,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664915639] [2021-07-14 22:59:05,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 22:59:05,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:05,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 22:59:05,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-07-14 22:59:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:05,252 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:05,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:05,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:05,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:09,991 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-07-14 22:59:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:17,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-07-14 22:59:17,413 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:17,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1726879597, now seen corresponding path program 9 times [2021-07-14 22:59:17,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:17,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440641805] [2021-07-14 22:59:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:17,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:17,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440641805] [2021-07-14 22:59:17,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440641805] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:17,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678912604] [2021-07-14 22:59:17,487 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:17,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 22:59:17,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:17,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 22:59:17,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:17,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678912604] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:17,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:17,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-07-14 22:59:17,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135421976] [2021-07-14 22:59:17,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 22:59:17,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:17,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 22:59:17,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-07-14 22:59:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:17,633 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:17,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:17,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:18,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:18,236 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:18,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:18,236 INFO L82 PathProgramCache]: Analyzing trace with hash 913768660, now seen corresponding path program 10 times [2021-07-14 22:59:18,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:18,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481345864] [2021-07-14 22:59:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:19,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:19,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481345864] [2021-07-14 22:59:19,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481345864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:19,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741758285] [2021-07-14 22:59:19,341 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:19,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:59:19,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:19,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 22:59:19,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:20,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 69 [2021-07-14 22:59:20,197 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 22:59:20,205 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:20,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:20,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:20,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-07-14 22:59:20,216 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 22:59:20,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:20,253 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:20,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-07-14 22:59:20,586 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:59:21,156 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2021-07-14 22:59:21,157 INFO L628 ElimStorePlain]: treesize reduction 220, result has 85.4 percent of original size [2021-07-14 22:59:21,245 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:59:21,245 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:97, output treesize:3 [2021-07-14 22:59:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:21,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741758285] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:21,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:21,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 39 [2021-07-14 22:59:21,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786139135] [2021-07-14 22:59:21,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 22:59:21,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:21,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 22:59:21,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1426, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 22:59:21,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:21,278 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:21,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.9) internal successors, (76), 39 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:21,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:21,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:23,174 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2021-07-14 22:59:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:24,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-07-14 22:59:24,493 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1844999411, now seen corresponding path program 11 times [2021-07-14 22:59:24,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:24,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376258794] [2021-07-14 22:59:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:24,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:24,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376258794] [2021-07-14 22:59:24,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376258794] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:24,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124671201] [2021-07-14 22:59:24,602 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:24,633 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 22:59:24,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:24,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 22:59:24,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:24,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124671201] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:24,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:24,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 22:59:24,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138970446] [2021-07-14 22:59:24,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 22:59:24,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:24,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 22:59:24,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2021-07-14 22:59:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:24,841 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:24,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 24 states have internal predecessors, (79), 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 22:59:24,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:24,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:24,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:24,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:25,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-07-14 22:59:25,800 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:25,801 INFO L82 PathProgramCache]: Analyzing trace with hash -318327838, now seen corresponding path program 10 times [2021-07-14 22:59:25,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:25,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390822418] [2021-07-14 22:59:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:25,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:25,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390822418] [2021-07-14 22:59:25,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390822418] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:25,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550819434] [2021-07-14 22:59:25,867 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:25,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:59:25,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:25,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 22:59:25,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:26,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550819434] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:26,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:26,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 22:59:26,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165965224] [2021-07-14 22:59:26,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 22:59:26,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:26,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 22:59:26,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-07-14 22:59:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:26,035 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:26,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:26,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:26,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:26,662 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:26,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1248739109, now seen corresponding path program 11 times [2021-07-14 22:59:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:26,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556618239] [2021-07-14 22:59:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:27,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:27,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556618239] [2021-07-14 22:59:27,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556618239] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:27,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503033945] [2021-07-14 22:59:27,528 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:27,616 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 22:59:27,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:27,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 22:59:27,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 67 [2021-07-14 22:59:28,455 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 22:59:28,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 22:59:28,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 22:59:28,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 47 [2021-07-14 22:59:28,474 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 22:59:28,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:28,510 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:59:28,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-07-14 22:59:28,830 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 22:59:29,593 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 95 [2021-07-14 22:59:29,594 INFO L628 ElimStorePlain]: treesize reduction 1235, result has 35.7 percent of original size [2021-07-14 22:59:29,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 22:59:29,650 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:93, output treesize:3 [2021-07-14 22:59:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:29,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503033945] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:29,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:29,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-07-14 22:59:29,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061153654] [2021-07-14 22:59:29,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 22:59:29,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:29,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 22:59:29,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 22:59:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:29,679 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:29,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.875) internal successors, (75), 40 states have internal predecessors, (75), 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 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:30,726 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-07-14 22:59:31,029 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2021-07-14 22:59:32,831 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2021-07-14 22:59:33,090 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2021-07-14 22:59:33,478 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 103 [2021-07-14 22:59:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-14 22:59:34,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-07-14 22:59:34,555 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:34,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:34,555 INFO L82 PathProgramCache]: Analyzing trace with hash -554350334, now seen corresponding path program 12 times [2021-07-14 22:59:34,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:34,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733361013] [2021-07-14 22:59:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:34,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:34,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733361013] [2021-07-14 22:59:34,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733361013] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:34,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719376710] [2021-07-14 22:59:34,637 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:34,663 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 22:59:34,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:34,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 22:59:34,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:34,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719376710] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:34,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:34,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2021-07-14 22:59:34,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084552056] [2021-07-14 22:59:34,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 22:59:34,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:34,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 22:59:34,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-07-14 22:59:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:34,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:34,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-14 22:59:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-14 22:59:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 22:59:35,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:35,723 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:35,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1583660301, now seen corresponding path program 13 times [2021-07-14 22:59:35,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:35,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049873745] [2021-07-14 22:59:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:35,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:35,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049873745] [2021-07-14 22:59:35,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049873745] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:35,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308473817] [2021-07-14 22:59:35,779 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:35,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 22:59:35,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:35,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308473817] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:35,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:59:35,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 22:59:35,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927184926] [2021-07-14 22:59:35,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 22:59:35,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:59:35,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 22:59:35,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-14 22:59:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:35,955 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:59:35,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 22:59:35,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 22:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 22:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 22:59:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 22:59:36,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2021-07-14 22:59:36,733 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:59:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:59:36,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1637676428, now seen corresponding path program 14 times [2021-07-14 22:59:36,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:59:36,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349011856] [2021-07-14 22:59:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:59:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:59:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:59:37,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:59:37,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349011856] [2021-07-14 22:59:37,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349011856] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:59:37,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869322516] [2021-07-14 22:59:37,404 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:59:37,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:59:37,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:59:37,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-14 22:59:37,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:59:51,970 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 43 [2021-07-14 22:59:53,439 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 44 [2021-07-14 22:59:54,842 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 45 [2021-07-14 22:59:56,044 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 42 [2021-07-14 22:59:57,289 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 39 [2021-07-14 23:00:50,714 WARN L205 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 45 [2021-07-14 23:00:57,278 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 47 [2021-07-14 23:00:57,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 23:00:57,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 23:00:57,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 23:00:57,329 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 23:00:57,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 79 treesize of output 119 [2021-07-14 23:00:58,833 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 23:00:58,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 23:00:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 23:00:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 23:00:58,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 23:00:58,927 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 23:00:58,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 63 treesize of output 103 [2021-07-14 23:01:00,439 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 23:01:00,556 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-07-14 23:01:00,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 23:01:00,643 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 23:01:00,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 47 treesize of output 135 [2021-07-14 23:01:00,878 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 124 [2021-07-14 23:01:01,223 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 124 [2021-07-14 23:01:01,330 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 123 [2021-07-14 23:01:01,485 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 169 [2021-07-14 23:01:01,809 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 221 [2021-07-14 23:01:02,871 WARN L205 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 265 [2021-07-14 23:01:03,883 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 304 DAG size of output: 265 [2021-07-14 23:01:04,826 WARN L205 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 273 [2021-07-14 23:01:06,423 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 377 DAG size of output: 373 [2021-07-14 23:01:07,870 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 377 DAG size of output: 373 [2021-07-14 23:01:09,380 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 377 DAG size of output: 373 [2021-07-14 23:01:10,496 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 369 DAG size of output: 373 [2021-07-14 23:01:10,500 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 23:01:15,239 WARN L205 SmtUtils]: Spent 4.74 s on a formula simplification. DAG size of input: 408 DAG size of output: 323 [2021-07-14 23:01:15,239 INFO L628 ElimStorePlain]: treesize reduction 15458, result has 49.5 percent of original size [2021-07-14 23:01:16,006 WARN L205 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 321 [2021-07-14 23:01:17,222 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 205 [2021-07-14 23:01:17,560 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 262 [2021-07-14 23:01:17,892 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 262 [2021-07-14 23:01:18,774 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 524 [2021-07-14 23:01:19,405 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 521 [2021-07-14 23:01:20,095 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 519 DAG size of output: 532 [2021-07-14 23:01:20,301 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 361 [2021-07-14 23:01:20,498 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 358 [2021-07-14 23:01:22,493 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 362 DAG size of output: 415 [2021-07-14 23:01:23,506 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 271 [2021-07-14 23:01:24,021 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 207 [2021-07-14 23:01:24,826 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 326 [2021-07-14 23:01:25,227 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 287 [2021-07-14 23:01:25,975 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 158 [2021-07-14 23:01:26,159 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-07-14 23:01:26,711 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 238 [2021-07-14 23:01:26,867 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 201 [2021-07-14 23:01:27,677 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-07-14 23:01:27,801 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 287 [2021-07-14 23:01:27,975 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 201 [2021-07-14 23:01:29,543 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 238 [2021-07-14 23:01:30,232 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-07-14 23:01:31,157 WARN L205 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 356 [2021-07-14 23:01:31,789 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 271 [2021-07-14 23:01:32,279 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 207 [2021-07-14 23:01:33,917 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 548 DAG size of output: 414 [2021-07-14 23:01:35,593 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 548 DAG size of output: 414 [2021-07-14 23:01:37,408 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 559 DAG size of output: 424 [2021-07-14 23:01:38,384 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 523 [2021-07-14 23:01:39,176 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 523 [2021-07-14 23:01:40,041 WARN L205 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 506 [2021-07-14 23:01:40,609 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 233 [2021-07-14 23:01:41,242 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 209 [2021-07-14 23:01:42,221 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 392 [2021-07-14 23:01:42,376 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 166 [2021-07-14 23:01:42,765 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 131 [2021-07-14 23:01:43,345 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 209 [2021-07-14 23:01:43,549 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 343 [2021-07-14 23:01:44,303 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 304 [2021-07-14 23:01:44,833 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 238 [2021-07-14 23:01:45,371 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 310 [2021-07-14 23:01:45,891 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 395 [2021-07-14 23:01:47,195 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 667 DAG size of output: 621 [2021-07-14 23:01:49,028 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 866 DAG size of output: 768 [2021-07-14 23:01:49,211 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 346 [2021-07-14 23:01:49,392 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 343 [2021-07-14 23:01:51,063 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 346 DAG size of output: 399 [2021-07-14 23:01:51,573 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 332 [2021-07-14 23:01:52,007 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 168 [2021-07-14 23:01:52,116 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 168 [2021-07-14 23:01:52,234 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 188 [2021-07-14 23:01:52,925 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 187 [2021-07-14 23:01:53,086 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 187 [2021-07-14 23:01:53,321 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 205 [2021-07-14 23:01:53,679 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 216 [2021-07-14 23:01:55,075 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 184 [2021-07-14 23:01:55,196 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 184 [2021-07-14 23:01:55,357 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 191 [2021-07-14 23:01:55,817 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 261 [2021-07-14 23:01:56,414 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 192 [2021-07-14 23:01:56,616 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 192 [2021-07-14 23:01:56,872 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 201 [2021-07-14 23:01:57,310 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 196 [2021-07-14 23:01:57,921 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 350 [2021-07-14 23:01:58,895 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 485 [2021-07-14 23:01:59,507 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 271 [2021-07-14 23:01:59,989 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 207 [2021-07-14 23:02:01,445 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 712 DAG size of output: 526 [2021-07-14 23:02:02,937 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 712 DAG size of output: 526 [2021-07-14 23:02:04,471 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 724 DAG size of output: 537 [2021-07-14 23:02:04,810 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 227 [2021-07-14 23:02:04,931 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 138 [2021-07-14 23:02:05,176 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 142 [2021-07-14 23:02:06,016 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 237 [2021-07-14 23:02:06,125 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 201 [2021-07-14 23:02:06,368 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 141 [2021-07-14 23:02:08,339 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 459 DAG size of output: 633 [2021-07-14 23:02:08,739 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 399 [2021-07-14 23:02:09,227 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 214 [2021-07-14 23:02:09,721 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 225 [2021-07-14 23:02:10,524 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 443 [2021-07-14 23:02:14,613 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 845 DAG size of output: 836 [2021-07-14 23:02:19,597 WARN L205 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 988 DAG size of output: 921 [2021-07-14 23:02:24,750 WARN L205 SmtUtils]: Spent 5.15 s on a formula simplification. DAG size of input: 988 DAG size of output: 921 [2021-07-14 23:02:29,953 WARN L205 SmtUtils]: Spent 5.20 s on a formula simplification. DAG size of input: 1000 DAG size of output: 935 [2021-07-14 23:02:32,475 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 909 DAG size of output: 570 [2021-07-14 23:02:32,817 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 374 [2021-07-14 23:02:33,075 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 369 [2021-07-14 23:02:33,248 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 314 [2021-07-14 23:02:33,496 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 221 [2021-07-14 23:02:33,642 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 235 [2021-07-14 23:02:33,972 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 185 [2021-07-14 23:02:34,141 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 199 [2021-07-14 23:02:34,294 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 210 [2021-07-14 23:02:34,902 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 299 [2021-07-14 23:02:35,753 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 270 [2021-07-14 23:02:37,163 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 458 DAG size of output: 453 [2021-07-14 23:02:37,954 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 180 [2021-07-14 23:02:38,374 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 217 [2021-07-14 23:02:38,983 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 296 [2021-07-14 23:02:39,573 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 296 [2021-07-14 23:02:40,236 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 306 [2021-07-14 23:02:40,529 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 142 [2021-07-14 23:02:40,706 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 215 [2021-07-14 23:02:41,197 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 163 [2021-07-14 23:02:41,503 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 195 [2021-07-14 23:02:42,124 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 282 [2021-07-14 23:02:42,620 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 197 [2021-07-14 23:02:43,206 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 285 [2021-07-14 23:02:43,672 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 285 [2021-07-14 23:02:44,163 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 295 [2021-07-14 23:02:44,904 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 171 [2021-07-14 23:02:45,245 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 235 [2021-07-14 23:02:48,057 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 751 DAG size of output: 664 [2021-07-14 23:02:48,304 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 353 [2021-07-14 23:02:48,710 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 263 [2021-07-14 23:02:49,218 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 202 [2021-07-14 23:02:49,605 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 381 [2021-07-14 23:02:49,978 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 171 [2021-07-14 23:02:50,403 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 170 [2021-07-14 23:02:50,662 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 310 [2021-07-14 23:02:51,443 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 257 [2021-07-14 23:02:52,222 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 320 [2021-07-14 23:02:52,474 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 245 [2021-07-14 23:02:52,690 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 208 [2021-07-14 23:02:53,079 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 272 [2021-07-14 23:02:53,536 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 308 [2021-07-14 23:02:53,817 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 238 [2021-07-14 23:02:54,261 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 294 [2021-07-14 23:02:56,002 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 567 DAG size of output: 530 [2021-07-14 23:02:56,755 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 212 [2021-07-14 23:03:02,017 WARN L205 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 778 DAG size of output: 691 [2021-07-14 23:03:14,583 WARN L205 SmtUtils]: Spent 12.56 s on a formula simplification. DAG size of input: 905 DAG size of output: 857 [2021-07-14 23:03:27,154 WARN L205 SmtUtils]: Spent 12.57 s on a formula simplification. DAG size of input: 905 DAG size of output: 857 [2021-07-14 23:03:40,511 WARN L205 SmtUtils]: Spent 13.35 s on a formula simplification. DAG size of input: 910 DAG size of output: 862 [2021-07-14 23:03:41,468 WARN L205 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 704 DAG size of output: 705 [2021-07-14 23:03:41,640 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2021-07-14 23:03:41,854 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 163 [2021-07-14 23:03:42,483 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 205 [2021-07-14 23:03:42,730 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 226 [2021-07-14 23:03:43,189 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 226 [2021-07-14 23:03:43,743 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 221 [2021-07-14 23:03:44,643 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 435 [2021-07-14 23:03:44,776 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 210 [2021-07-14 23:03:45,294 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 198 [2021-07-14 23:03:48,497 WARN L205 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 765 DAG size of output: 557 [2021-07-14 23:03:49,286 WARN L205 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 642 DAG size of output: 643 [2021-07-14 23:03:49,542 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 472 [2021-07-14 23:03:49,873 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 192 [2021-07-14 23:03:50,535 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 205 [2021-07-14 23:03:50,787 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 226 [2021-07-14 23:03:51,323 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 221 [2021-07-14 23:03:52,281 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 376 [2021-07-14 23:03:52,914 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 194 [2021-07-14 23:03:55,529 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 705 DAG size of output: 499 [2021-07-14 23:03:55,851 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 188 [2021-07-14 23:04:02,874 WARN L205 SmtUtils]: Spent 7.02 s on a formula simplification. DAG size of input: 930 DAG size of output: 695 [2021-07-14 23:04:03,120 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 353 [2021-07-14 23:04:03,475 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 381 [2021-07-14 23:04:04,097 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 234 [2021-07-14 23:04:04,518 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 245 [2021-07-14 23:04:04,666 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 213 [2021-07-14 23:04:04,915 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 265 [2021-07-14 23:04:05,190 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 311 [2021-07-14 23:04:05,852 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 294 [2021-07-14 23:04:06,102 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 157 [2021-07-14 23:04:06,599 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 310 [2021-07-14 23:04:06,873 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2021-07-14 23:04:07,090 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 308 [2021-07-14 23:04:07,339 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 259 [2021-07-14 23:04:07,784 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 301 [2021-07-14 23:04:09,252 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 481 DAG size of output: 446 [2021-07-14 23:04:14,173 WARN L205 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 620 DAG size of output: 562 [2021-07-14 23:04:14,475 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 263 [2021-07-14 23:04:14,960 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 250 [2021-07-14 23:04:26,886 WARN L205 SmtUtils]: Spent 11.92 s on a formula simplification. DAG size of input: 686 DAG size of output: 678 [2021-07-14 23:04:38,625 WARN L205 SmtUtils]: Spent 11.74 s on a formula simplification. DAG size of input: 686 DAG size of output: 678 [2021-07-14 23:04:51,096 WARN L205 SmtUtils]: Spent 12.47 s on a formula simplification. DAG size of input: 691 DAG size of output: 683 [2021-07-14 23:04:52,090 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 576 [2021-07-14 23:04:52,217 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 232 [2021-07-14 23:04:52,719 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 187 [2021-07-14 23:04:53,126 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2021-07-14 23:04:53,555 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 220 [2021-07-14 23:04:54,170 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 224 [2021-07-14 23:04:54,568 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 302 [2021-07-14 23:04:55,316 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 201 [2021-07-14 23:04:55,769 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 229 [2021-07-14 23:04:56,982 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 543 DAG size of output: 418 [2021-07-14 23:05:00,845 WARN L205 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 693 DAG size of output: 532 [2021-07-14 23:05:01,333 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 174 [2021-07-14 23:05:02,348 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 542 DAG size of output: 543 [2021-07-14 23:05:02,518 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 417 [2021-07-14 23:05:03,469 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 224 [2021-07-14 23:05:03,851 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 201 [2021-07-14 23:05:03,968 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 297 [2021-07-14 23:05:04,777 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 201 [2021-07-14 23:05:05,233 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 227 [2021-07-14 23:05:06,498 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 497 DAG size of output: 379 [2021-07-14 23:05:07,293 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 174 [2021-07-14 23:05:11,220 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 633 DAG size of output: 482 [2021-07-14 23:05:21,331 WARN L205 SmtUtils]: Spent 10.11 s on a formula simplification. DAG size of input: 808 DAG size of output: 619 [2021-07-14 23:05:44,995 WARN L205 SmtUtils]: Spent 23.66 s on a formula simplification. DAG size of input: 2021 DAG size of output: 1516 [2021-07-14 23:06:07,530 WARN L205 SmtUtils]: Spent 22.53 s on a formula simplification. DAG size of input: 2021 DAG size of output: 1516 [2021-07-14 23:06:30,943 WARN L205 SmtUtils]: Spent 23.40 s on a formula simplification. DAG size of input: 2041 DAG size of output: 1537 [2021-07-14 23:06:31,522 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 544 DAG size of output: 546 [2021-07-14 23:06:31,707 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 435 [2021-07-14 23:06:32,763 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 276 [2021-07-14 23:06:34,013 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 267 [2021-07-14 23:06:35,113 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 590 DAG size of output: 522 [2021-07-14 23:06:35,394 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 233 [2021-07-14 23:06:35,599 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 156 [2021-07-14 23:06:38,225 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 672 DAG size of output: 592 [2021-07-14 23:06:38,594 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 143 [2021-07-14 23:06:38,777 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 180 [2021-07-14 23:06:39,006 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 148 [2021-07-14 23:06:39,340 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2021-07-14 23:06:39,589 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 280 [2021-07-14 23:06:39,852 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2021-07-14 23:06:40,021 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 165 [2021-07-14 23:06:40,312 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 283 [2021-07-14 23:06:40,470 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 144 [2021-07-14 23:06:40,945 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-07-14 23:06:42,073 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 515 [2021-07-14 23:06:42,237 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 390 [2021-07-14 23:06:43,305 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 276 [2021-07-14 23:06:44,837 WARN L205 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 395 [2021-07-14 23:06:45,231 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 239 [2021-07-14 23:06:47,316 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 519 DAG size of output: 490 [2021-07-14 23:06:47,839 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 308 [2021-07-14 23:06:48,410 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 218 [2021-07-14 23:06:49,123 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 339 [2021-07-14 23:06:49,782 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 196 [2021-07-14 23:06:50,606 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 498 [2021-07-14 23:06:51,212 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 393 [2021-07-14 23:06:51,923 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 161 [2021-07-14 23:06:52,507 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 243 [2021-07-14 23:06:52,839 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 326 [2021-07-14 23:06:53,403 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 232 [2021-07-14 23:06:53,554 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 160 [2021-07-14 23:06:53,810 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 141 [2021-07-14 23:06:54,513 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 203 [2021-07-14 23:06:55,913 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 617 DAG size of output: 536 [2021-07-14 23:06:58,980 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 708 DAG size of output: 641 [2021-07-14 23:06:59,597 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 489 [2021-07-14 23:06:59,964 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 221 [2021-07-14 23:07:00,396 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 398 [2021-07-14 23:07:01,337 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 243 [2021-07-14 23:07:01,643 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 326 [2021-07-14 23:07:02,041 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 160 [2021-07-14 23:07:02,883 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 228 [2021-07-14 23:07:04,260 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 583 DAG size of output: 507 [2021-07-14 23:07:07,042 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 663 DAG size of output: 592 [2021-07-14 23:07:07,827 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 275 [2021-07-14 23:07:08,280 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 169 [2021-07-14 23:07:24,784 WARN L205 SmtUtils]: Spent 16.50 s on a formula simplification. DAG size of input: 2088 DAG size of output: 1709 [2021-07-14 23:07:53,337 WARN L205 SmtUtils]: Spent 28.54 s on a formula simplification. DAG size of input: 3413 DAG size of output: 2473 [2021-07-14 23:08:21,744 WARN L205 SmtUtils]: Spent 28.39 s on a formula simplification. DAG size of input: 3413 DAG size of output: 2473 [2021-07-14 23:09:05,854 WARN L205 SmtUtils]: Spent 44.08 s on a formula simplification. DAG size of input: 3420 DAG size of output: 3185 [2021-07-14 23:09:07,238 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 358 [2021-07-14 23:09:07,684 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 335 [2021-07-14 23:09:08,270 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 150 [2021-07-14 23:09:09,132 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 169 [2021-07-14 23:09:09,571 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 161 [2021-07-14 23:09:09,794 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 400 [2021-07-14 23:09:10,368 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 351 [2021-07-14 23:09:11,100 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 297 [2021-07-14 23:09:11,220 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 257 [2021-07-14 23:09:26,957 WARN L205 SmtUtils]: Spent 15.28 s on a formula simplification. DAG size of input: 3047 DAG size of output: 2266 [2021-07-14 23:09:42,093 WARN L205 SmtUtils]: Spent 15.12 s on a formula simplification. DAG size of input: 3047 DAG size of output: 2266 [2021-07-14 23:09:58,282 WARN L205 SmtUtils]: Spent 16.17 s on a formula simplification. DAG size of input: 3052 DAG size of output: 2271 [2021-07-14 23:10:14,469 WARN L205 SmtUtils]: Spent 16.17 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2823 [2021-07-14 23:10:14,634 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 294 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown